312311111232 has 28 divisors (see below), whose sum is σ = 826323148976. Its totient is φ = 104103703680.

The previous prime is 312311111221. The next prime is 312311111249. The reversal of 312311111232 is 232111113213.

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

It is a junction number, because it is equal to n+sod(n) for n = 312311111199 and 312311111208.

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 3 ways as a sum of consecutive naturals, for example, 813309994 + ... + 813310377.

Almost surely, 2^312311111232 is an apocalyptic number.

312311111232 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

312311111232 is an abundant number, since it is smaller than the sum of its proper divisors (514012037744).

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

312311111232 is a wasteful number, since it uses less digits than its factorization.

312311111232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1626620386 (or 1626620376 counting only the distinct ones).

The product of its digits is 216, while the sum is 21.

Adding to 312311111232 its reverse (232111113213), we get a palindrome (544422224445).

The spelling of 312311111232 in words is "three hundred twelve billion, three hundred eleven million, one hundred eleven thousand, two hundred thirty-two".