312133133112 has 64 divisors (see below), whose sum is σ = 837553128480. Its totient is φ = 96582684672.

The previous prime is 312133133089. The next prime is 312133133159. The reversal of 312133133112 is 211331331213.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5210163 + ... + 5269730.

Almost surely, 2^312133133112 is an apocalyptic number.

It is an amenable number.

312133133112 is an abundant number, since it is smaller than the sum of its proper divisors (525419995368).

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

312133133112 is a wasteful number, since it uses less digits than its factorization.

312133133112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10479992 (or 10479988 counting only the distinct ones).

The product of its digits is 972, while the sum is 24.

Adding to 312133133112 its reverse (211331331213), we get a palindrome (523464464325).

The spelling of 312133133112 in words is "three hundred twelve billion, one hundred thirty-three million, one hundred thirty-three thousand, one hundred twelve".