20202
This number is a composite.
20202 + sod(20202) + sigma(20202) + d(20202) + nod(20202) is a palindromic prime, where nod = number of digits. [Sariyar]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell
This number is a composite.
20202 + sod(20202) + sigma(20202) + d(20202) + nod(20202) is a palindromic prime, where nod = number of digits. [Sariyar]