312203112331 has 6 divisors (see below), whose sum is σ = 343165404596. Its totient is φ = 283821011100.

The previous prime is 312203112311. The next prime is 312203112373. The reversal of 312203112331 is 133211302213.

It is not a de Polignac number, because 312203112331 - 2²⁵ = 312169557899 is a prime.

It is a super-2 number, since 2×312203112331² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312203112301) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1290095385 + ... + 1290095626.

Almost surely, 2^312203112331 is an apocalyptic number.

312203112331 is a deficient number, since it is larger than the sum of its proper divisors (30962292265).

312203112331 is a wasteful number, since it uses less digits than its factorization.

312203112331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2580191033 (or 2580191022 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 312203112331 its reverse (133211302213), we get a palindrome (445414414544).

The spelling of 312203112331 in words is "three hundred twelve billion, two hundred three million, one hundred twelve thousand, three hundred thirty-one".