312331112132 has 24 divisors (see below), whose sum is σ = 588692429976. Its totient is φ = 144136067328.

The previous prime is 312331112131. The next prime is 312331112147. The reversal of 312331112132 is 231211133213.

It can be written as a sum of positive squares in 4 ways, for example, as 173667226756 + 138663885376 = 416734^2 + 372376^2 .

It is a super-2 number, since 2×312331112132² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 312331112098 and 312331112107.

It is not an unprimeable number, because it can be changed into a prime (312331112131) 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, 108398 + ... + 797754.

It is an arithmetic number, because the mean of its divisors is an integer number (24528851249).

Almost surely, 2^312331112132 is an apocalyptic number.

It is an amenable number.

312331112132 is a deficient number, since it is larger than the sum of its proper divisors (276361317844).

312331112132 is a wasteful number, since it uses less digits than its factorization.

312331112132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698087 (or 698085 counting only the distinct ones).

The product of its digits is 648, while the sum is 23.

Adding to 312331112132 its reverse (231211133213), we get a palindrome (543542245345).

The spelling of 312331112132 in words is "three hundred twelve billion, three hundred thirty-one million, one hundred twelve thousand, one hundred thirty-two".