313231232112 has 40 divisors (see below), whose sum is σ = 831050435856. Its totient is φ = 101588507136.

The previous prime is 313231232089. The next prime is 313231232123. The reversal of 313231232112 is 211232132313.

It is a super-2 number, since 2×313231232112² (a number of 24 digits) contains 22 as substring.

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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88182693 + ... + 88186244.

Almost surely, 2^313231232112 is an apocalyptic number.

It is an amenable number.

313231232112 is an abundant number, since it is smaller than the sum of its proper divisors (517819203744).

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

313231232112 is a wasteful number, since it uses less digits than its factorization.

313231232112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176368985 (or 176368979 counting only the distinct ones).

The product of its digits is 1296, while the sum is 24.

Adding to 313231232112 its reverse (211232132313), we get a palindrome (524463364425).

The spelling of 313231232112 in words is "three hundred thirteen billion, two hundred thirty-one million, two hundred thirty-two thousand, one hundred twelve".