12917097923 has 2 divisors, whose sum is σ = 12917097924. Its totient is φ = 12917097922.

The previous prime is 12917097871. The next prime is 12917097953. The reversal of 12917097923 is 32979071921.

It is a strong prime.

It is an emirp because it is prime and its reverse (32979071921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12917097923 - 2¹⁴ = 12917081539 is a prime.

It is not a weakly prime, because it can be changed into another prime (12917097953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6458548961 + 6458548962.

It is an arithmetic number, because the mean of its divisors is an integer number (6458548962).

Almost surely, 2^12917097923 is an apocalyptic number.

12917097923 is a deficient number, since it is larger than the sum of its proper divisors (1).

12917097923 is an equidigital number, since it uses as much as digits as its factorization.

12917097923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 428652, while the sum is 50.

The spelling of 12917097923 in words is "twelve billion, nine hundred seventeen million, ninety-seven thousand, nine hundred twenty-three".