23242...94041 (38-digits)

This number is a prime.

                                   23242526 2728293031 3233343536 3738394041

The larger of only two primes concatenated from n successive double-digit numbers, that begins and ends with primes p, q, i.e., (n=19, p=23, q=41). The other prime is 37383940414243. [Loungrides]