345533537

This number is a prime.

The smallest Yarborough prime (containing smallest digit > 1) that is the sum of seven anti-Yarborough primes (containing only 0's and 1's), i.e., (11000111 + 11100101 + 11110111 + 11111101 + 100100111 + 100111001 + 101001001). [Bajpai]