75778...56541 (1061-digits)

This number is a probable-prime (likely to be a prime but we have not (re-)proven it on this site).

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

The smallest titanic prime formed by concatenating in order n successive palindromic primes, (case n=181). Curiously n is also palindromic prime. [Gupta]