312468031 has 4 divisors (see below), whose sum is σ = 312513552. Its totient is φ = 312422512.

The previous prime is 312467983. The next prime is 312468059. The reversal of 312468031 is 130864213.

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

It is a cyclic number.

It is not a de Polignac number, because 312468031 - 2²³ = 304079423 is a prime.

It is a super-2 number, since 2×312468031² = 195272540794033922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312468061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10126 + ... + 26971.

It is an arithmetic number, because the mean of its divisors is an integer number (78128388).

Almost surely, 2^312468031 is an apocalyptic number.

312468031 is a deficient number, since it is larger than the sum of its proper divisors (45521).

312468031 is an equidigital number, since it uses as much as digits as its factorization.

312468031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45520.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 312468031 is about 17676.7652866694. The cubic root of 312468031 is about 678.5812627684.

The spelling of 312468031 in words is "three hundred twelve million, four hundred sixty-eight thousand, thirty-one".