2069
This number is a prime.
The smallest number that requires a dozen steps to reach a palindrome
with the reverse-then-add process. [Caldwell]
The next planetary occultation of the star Zavijava (Beta Virginis) by Venus will take place on 11 August 2069. (Zavijava was used to confirm Einstein's general theory of relativity during the solar eclipse of 1922.)
(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