123113

Properties

Appears in sequences

• Numbers k such that replacing each nonzero digit d with the d-th prime (replacing each 0 digit with a 1) yields a square.at n=21A048383
• Primes with ten embedded primes.at n=17A179918
• Prime numbers n such that replacing each digit d in the decimal expansion of n with prime(d) produces a square. Zeros are not allowed.at n=5A254038
• Numbers k such that 4*10^k + 21 is prime.at n=29A276047
• Primes formed from the concatenation of n and previousprime(n).at n=30A280388
• Primes p such that exactly five numbers among all circular permutations of the digits of p are prime.at n=29A344629
• Square array of distinct positive integers A(n, k), n, k > 0, read and filled the greedy way by antidiagonals downwards such that the concatenations of the terms of two distinct rows are always equal.at n=20A363932
• Prime numbersat n=11573