12500013913 has 2 divisors, whose sum is σ = 12500013914. Its totient is φ = 12500013912.

The previous prime is 12500013853. The next prime is 12500013919. The reversal of 12500013913 is 31931000521.

12500013913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8113865929 + 4386147984 = 90077^2 + 66228^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12500013913 is a prime.

It is not a weakly prime, because it can be changed into another prime (12500013919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6250006956 + 6250006957.

It is an arithmetic number, because the mean of its divisors is an integer number (6250006957).

Almost surely, 2^12500013913 is an apocalyptic number.

It is an amenable number.

12500013913 is a deficient number, since it is larger than the sum of its proper divisors (1).

12500013913 is an equidigital number, since it uses as much as digits as its factorization.

12500013913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 810, while the sum is 25.

The spelling of 12500013913 in words is "twelve billion, five hundred million, thirteen thousand, nine hundred thirteen".