11111119

Properties

Appears in sequences

• Smallest n-digit prime containing only digits 1 and 9, or 0 if no such prime exists.at n=7A036936
• Primes arising in A087606, or 0 if A087606(k) = 0.at n=6A087607
• Primes of the form identical digits followed by a 9.at n=12A090148
• Primes of the form 10*R_k + 9, where R_k is the repunit (A002275) of length k.at n=3A093400
• Least n-digit zeroless prime with nonprime digits.at n=6A103544
• Primes with digital product = 9.at n=18A107695
• (Digit 1 repeated n times) + n.at n=7A110369
• a(n) = (10^n + 71)/9.at n=7A165247
• Numbers having digits in nondecreasing order and repeatedly setting n := A066308(n) yields a constant nonzero n.at n=22A256242
• Single-digit odd primes and primes whose decimal expansion has the form iii...ij, where i and j are distinct odd digits.at n=37A321363
• Near-repdigit primes with at least two 1's as the repeated digit.at n=7A365592
• Prime numbersat n=733411