Skipping a few intermediate records, here is one that could be a decent candidate for someone with the next version of Primo:
10^31047-2*10^26802-1 is prime and
10^31047-2*10^26802-3 is a Fermat and Lucas PRP!
(That's a 99...99799...999 and 99...99799...997 near-repdigit twin pair.)
|