123575321

+ A palindromic prime whose digits are ordered consecutive primes if 1 is accepted as prime. [Trigg]

+ Smallest non-holey palindromic prime consisting of each of the digits without holes only. [Gupta]

+ A remarkable palindromic peak number consisting of all the positive non-composite digits. [Loungrides]

(There is one curio for this number that has not yet been approved by an editor.)

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