312310232431 has 4 divisors (see below), whose sum is σ = 330681422592. Its totient is φ = 293939042272.

The previous prime is 312310232389. The next prime is 312310232477. The reversal of 312310232431 is 134232013213.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312310232431 is a prime.

It is a super-2 number, since 2×312310232431² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312310232396 and 312310232405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312310235431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9185595055 + ... + 9185595088.

It is an arithmetic number, because the mean of its divisors is an integer number (82670355648).

Almost surely, 2^312310232431 is an apocalyptic number.

312310232431 is a deficient number, since it is larger than the sum of its proper divisors (18371190161).

312310232431 is a wasteful number, since it uses less digits than its factorization.

312310232431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18371190160.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 312310232431 its reverse (134232013213), we get a palindrome (446542245644).

The spelling of 312310232431 in words is "three hundred twelve billion, three hundred ten million, two hundred thirty-two thousand, four hundred thirty-one".