19891
This number is a prime.
Smallest palindromic prime such that sum of its digits is a
perfect number. [Gupta]
The smallest palindromic prime formed by using all the digits which can be digital root of cubic numbers. [Gupta]
The only palindromic prime ZIP Code in the state of
Delaware. [Backus]
(There is one curio for this number that has not yet been approved by an editor.)
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