312203012231331 has 12 divisors (see below), whose sum is σ = 485649130137808. Its totient is φ = 192124930603824.

The previous prime is 312203012231309. The next prime is 312203012231351. The reversal of 312203012231331 is 133132210302213.

312203012231331 is a `hidden beast` number, since 3 + 1 + 2 + 2 + 0 + 301 + 2 + 23 + 1 + 331 = 666.

It is not a de Polignac number, because 312203012231331 - 2⁷ = 312203012231203 is a prime.

It is a super-2 number, since 2×312203012231331² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 312203012231295 and 312203012231304.

It is not an unprimeable number, because it can be changed into a prime (312203012231351) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1334200906855 + ... + 1334200907088.

Almost surely, 2^{312203012231331} is an apocalyptic number.

312203012231331 is a deficient number, since it is larger than the sum of its proper divisors (173446117906477).

312203012231331 is a wasteful number, since it uses less digits than its factorization.

312203012231331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2668401813962 (or 2668401813959 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 312203012231331 its reverse (133132210302213), we get a palindrome (445335222533544).

The spelling of 312203012231331 in words is "three hundred twelve trillion, two hundred three billion, twelve million, two hundred thirty-one thousand, three hundred thirty-one".