312402310031431 has 2 divisors, whose sum is σ = 312402310031432. Its totient is φ = 312402310031430.

The previous prime is 312402310031419. The next prime is 312402310031437. The reversal of 312402310031431 is 134130013204213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 312402310031431 - 2²¹ = 312402307934279 is a prime.

It is a super-2 number, since 2×312402310031431² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 312402310031431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312402310031437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156201155015715 + 156201155015716.

It is an arithmetic number, because the mean of its divisors is an integer number (156201155015716).

Almost surely, 2^{312402310031431} is an apocalyptic number.

312402310031431 is a deficient number, since it is larger than the sum of its proper divisors (1).

312402310031431 is an equidigital number, since it uses as much as digits as its factorization.

312402310031431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 312402310031431 its reverse (134130013204213), we get a palindrome (446532323235644).

The spelling of 312402310031431 in words is "three hundred twelve trillion, four hundred two billion, three hundred ten million, thirty-one thousand, four hundred thirty-one".