312309341731 has 2 divisors, whose sum is σ = 312309341732. Its totient is φ = 312309341730.

The previous prime is 312309341711. The next prime is 312309341741. The reversal of 312309341731 is 137143903213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 312309341731 - 2²³ = 312300953123 is a prime.

It is a super-2 number, since 2×312309341731² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (312309341711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156154670865 + 156154670866.

It is an arithmetic number, because the mean of its divisors is an integer number (156154670866).

Almost surely, 2^312309341731 is an apocalyptic number.

312309341731 is a deficient number, since it is larger than the sum of its proper divisors (1).

312309341731 is an equidigital number, since it uses as much as digits as its factorization.

312309341731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 37.

The spelling of 312309341731 in words is "three hundred twelve billion, three hundred nine million, three hundred forty-one thousand, seven hundred thirty-one".