128879

This number is a prime.

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The smallest emirp such that the sum of digits of its prime index is an emirp and equal to the reversal of the sum of digits of its reversal's prime index, i.e, π(128879)=12064, π(978821)=76990 and 1+2+0+6+4=reversal(7+6+9+9+0)=13. [Sariyar]

Submitted: 2020-05-19 15:45:04;   Last Modified: 2020-06-20 16:54:17.
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