111211

Properties

Appears in sequences

• Primes that contain digits 1 and 2 only.at n=11A020450
• Primes having only {0, 1, 2} as digits.at n=33A036953
• Primes arising in A036976.at n=14A036977
• Primes arising in A036978.at n=17A036979
• Multiplicative primes: product of digits is a prime.at n=24A046703
• Multiplicative and additive primes: primes where the product and sum of digits are also prime.at n=15A046713
• Numbers n such that sum of digits and product of digits are both prime.at n=28A052430
• Coefficients of monic primitive irreducible polynomials over GF(3) listed in lexicographic order.at n=27A058949
• Primes formed from the concatenation of k, k+1 and k for some k.at n=2A068660
• Numbers prime(k) such that A068863(k) = prime(k).at n=30A068868
• Leftmost 1 is converted to a 2, which then propagates one step at a time until it is rightmost; then it changes to a pair of 1's and the process repeats.at n=25A071762
• a(1)=1; a(n)=LookAndSay(a(n-1)^2) if n>1.at n=2A079558
• Duplicate of A068868.at n=30A085136
• Primes whose decimal representation also represents a prime in base 3.at n=17A089981
• Prime numbers with prime sum of any two digits.at n=17A091939
• Primes from merging of 6 successive digits in decimal expansion of the Champernowne Constant.at n=9A104949
• Near-repunit primes.at n=33A105992
• Primes with maximal digit = 2.at n=29A106100
• Primes with digital product = 2.at n=4A107612
• Irregular triangle in which the n-th row contains all primes having digit sum n (not containing the digit '0') in increasing order.at n=40A113625