99999...99999 (32-digits)

This number is a prime.

                                         99 9999992999 9999999999 9999999999

Just showing those entries submitted by 'Bajpai': (Click here to show all)

The smallest prime p whose sum of digits equals the 60th prime (i.e., 281). Curiously, p is an emirp and the sum of digits of the 60th prime is a palindromic prime. [Bajpai]