312440410031 has 2 divisors, whose sum is σ = 312440410032. Its totient is φ = 312440410030.

The previous prime is 312440410003. The next prime is 312440410039. The reversal of 312440410031 is 130014044213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 312440410031 - 2¹⁴ = 312440393647 is a prime.

It is a super-2 number, since 2×312440410031² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 312440409979 and 312440410006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312440410039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156220205015 + 156220205016.

It is an arithmetic number, because the mean of its divisors is an integer number (156220205016).

Almost surely, 2^312440410031 is an apocalyptic number.

312440410031 is a deficient number, since it is larger than the sum of its proper divisors (1).

312440410031 is an equidigital number, since it uses as much as digits as its factorization.

312440410031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 312440410031 its reverse (130014044213), we get a palindrome (442454454244).

The spelling of 312440410031 in words is "three hundred twelve billion, four hundred forty million, four hundred ten thousand, thirty-one".