312131340214320 has 160 divisors (see below), whose sum is σ = 1055595839042304. Its totient is φ = 75666454758400.

The previous prime is 312131340214319. The next prime is 312131340214321. The reversal of 312131340214320 is 23412043131213.

It is an interprime number because it is at equal distance from previous prime (312131340214319) and next prime (312131340214321).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (312131340214321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 114744355 + ... + 117433085.

Almost surely, 2^{312131340214320} is an apocalyptic number.

312131340214320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

312131340214320 is an abundant number, since it is smaller than the sum of its proper divisors (743464498827984).

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

312131340214320 is a wasteful number, since it uses less digits than its factorization.

312131340214320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2732731 (or 2732725 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

Adding to 312131340214320 its reverse (23412043131213), we get a palindrome (335543383345533).

The spelling of 312131340214320 in words is "three hundred twelve trillion, one hundred thirty-one billion, three hundred forty million, two hundred fourteen thousand, three hundred twenty".