312012432013 has 2 divisors, whose sum is σ = 312012432014. Its totient is φ = 312012432012.

The previous prime is 312012431909. The next prime is 312012432019. The reversal of 312012432013 is 310234210213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 300114421929 + 11898010084 = 547827^2 + 109078^2 .

It is a cyclic number.

It is not a de Polignac number, because 312012432013 - 2²⁹ = 311475561101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312012432019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156006216006 + 156006216007.

It is an arithmetic number, because the mean of its divisors is an integer number (156006216007).

Almost surely, 2^312012432013 is an apocalyptic number.

It is an amenable number.

312012432013 is a deficient number, since it is larger than the sum of its proper divisors (1).

312012432013 is an equidigital number, since it uses as much as digits as its factorization.

312012432013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 312012432013 its reverse (310234210213), we get a palindrome (622246642226).

The spelling of 312012432013 in words is "three hundred twelve billion, twelve million, four hundred thirty-two thousand, thirteen".