1117111

Properties

Appears in sequences

• Primes that contain digits 1 and 7 only.at n=22A020455
• Numbers with multiplicative digital root value 7.at n=24A034054
• Multiplicative primes: product of digits is a prime.at n=33A046703
• Palindromic primes whose product of digits is a prime.at n=7A046705
• Multiplicative and additive primes: primes where the product and sum of digits are also prime.at n=19A046713
• Palindromic primes containing at least one pair of consecutive equal digits.at n=21A050786
• Let p = abc..k be a prime in base 10. Define mirror(p) = abc...k...cba. Sequence gives primes of the form mirror(p) for some p.at n=25A068686
• Palindromic wing primes (a.k.a. near-repdigit palindromic primes) of the general form r*(10^d - 1)/9 + (m-r)*10^floor(d/2) where d is the number of digits (an odd number > 1), r is the repeated digit, and m (different from r) is the middle digit.at n=22A077798
• Palindromic primes with middle digit 7.at n=13A082443
• Palindromic primes with nondecreasing digits up to the middle and then nonincreasing.at n=35A084836
• Smallest palindromic prime containing the n-th palindrome.at n=26A085054
• Smallest palindromic prime built using the palindromes with odd number of digits as central digits.at n=16A087364
• Palindromic primes that yield a prime when sandwiched between two 9's.at n=26A088272
• a(1) = 11; for n > 1, palindromic primes in which a single digit is sandwiched between strings of '1's.at n=9A088281
• Primes arising in A090513.at n=6A090514
• Primes with digital product = 7.at n=8A107693
• Palindromes for which the product of the digits is prime.at n=15A117058
• Prime numbers for which the product of the digits is a noncomposite number.at n=34A117835
• Chen primes for which the product of the digits is also a Chen prime.at n=24A118722
• Palindromic primes using only odd digits (1, 3, 5, 7 or 9).at n=38A159471