12919402313 has 2 divisors, whose sum is σ = 12919402314. Its totient is φ = 12919402312.

The previous prime is 12919402213. The next prime is 12919402319. The reversal of 12919402313 is 31320491921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12796813129 + 122589184 = 113123^2 + 11072^2 .

It is an emirp because it is prime and its reverse (31320491921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12919402313 - 2⁸ = 12919402057 is a prime.

It is a super-2 number, since 2×12919402313² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12919402319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6459701156 + 6459701157.

It is an arithmetic number, because the mean of its divisors is an integer number (6459701157).

Almost surely, 2^12919402313 is an apocalyptic number.

It is an amenable number.

12919402313 is a deficient number, since it is larger than the sum of its proper divisors (1).

12919402313 is an equidigital number, since it uses as much as digits as its factorization.

12919402313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 35.

The spelling of 12919402313 in words is "twelve billion, nine hundred nineteen million, four hundred two thousand, three hundred thirteen".