11111...66787 (59-digits)

This number is a prime.

            111111222 2223333445 5556666667 7888889000 0112222334 4445566787

A prime obtained by adding repunit integers of prime length from 2 to 59 (i.e., 11+111+11111+1..1(59)). This prime also has prime length and prime digital sum. [Patterson]