19784...23997 (25-digits)
This number is a prime.
19784 1965566031 3589123997
The only non-titanic pandigital prime of form p^p+p-1, where p is prime, (case p=19). [Loungrides]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell