312123310012331 has 8 divisors (see below), whose sum is σ = 314231628951600. Its totient is φ = 310015171495008.

The previous prime is 312123310012307. The next prime is 312123310012337. The reversal of 312123310012331 is 133210013321213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312123310012331 is a prime.

It is a super-2 number, since 2×312123310012331² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 312123310012331.

It is not an unprimeable number, because it can be changed into a prime (312123310012337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41632976 + ... + 48554621.

It is an arithmetic number, because the mean of its divisors is an integer number (39278953618950).

Almost surely, 2^{312123310012331} is an apocalyptic number.

312123310012331 is a deficient number, since it is larger than the sum of its proper divisors (2108318939269).

312123310012331 is a wasteful number, since it uses less digits than its factorization.

312123310012331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90210973.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 312123310012331 its reverse (133210013321213), we get a palindrome (445333323333544).

The spelling of 312123310012331 in words is "three hundred twelve trillion, one hundred twenty-three billion, three hundred ten million, twelve thousand, three hundred thirty-one".