312340431020 has 24 divisors (see below), whose sum is σ = 684432945504. Its totient is φ = 119504164736.

The previous prime is 312340431019. The next prime is 312340431037. The reversal of 312340431020 is 20134043213.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 339500009 + ... + 339500928.

It is an arithmetic number, because the mean of its divisors is an integer number (28518039396).

Almost surely, 2^312340431020 is an apocalyptic number.

It is an amenable number.

312340431020 is an abundant number, since it is smaller than the sum of its proper divisors (372092514484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

312340431020 is a wasteful number, since it uses less digits than its factorization.

312340431020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679000969 (or 679000967 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 312340431020 its reverse (20134043213), we get a palindrome (332474474233).

The spelling of 312340431020 in words is "three hundred twelve billion, three hundred forty million, four hundred thirty-one thousand, twenty".