16711...11761 (151-digits)

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

                                                                1 6711658009
6443617661 3917355072 0363222069 0341985500 6518285003 9753946866 6442124466
6864935793 0058281560 0558914309 6022236302 7055371931 6671634469 0085611761

A palindromic prime formed by concatenating the reverse of f(361) and f(361); discarding one of the two equal digits in the junction. [Rivera]