13610...04137 (113-digits)

This number is a prime.

                             136 1015212836 4555667891 1051201361 5317119021
0231253276 3003253513 7840643546 5496528561 5956306667 0374178082 0861904137

The concatenation of the first 43 triangular numbers plus the 43rd prime, is prime. [Earls]