98765...56789 (29-digits)
This number is a prime.
987654321 1111111111 1123456789
The smallest palindromic prime showing the nine digits in
strict order and the central digit repeated. [Silva]
(There is one curio for this number that has not yet been approved by an editor.)
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell