This number is a prime.
The smallest prime p such that nth (n = π(p)), (n+10)th and (n+20)th primes end with same two-digit numbers. {173273, 173473, 173573.} [Ikemoto]
The smallest prime p such that nth (n = π(p)), (n+10)th and
(n+20)th primes end with same two-digit numbers. {173273,
173473, 173573.} [Ikemoto]