31331112324 has 48 divisors (see below), whose sum is σ = 73497391296. Its totient is φ = 10387843200.

The previous prime is 31331112299. The next prime is 31331112331. The reversal of 31331112324 is 42321113313.

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 = 31331112294 and 31331112303.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6026094 + ... + 6031290.

It is an arithmetic number, because the mean of its divisors is an integer number (1531195652).

Almost surely, 2^31331112324 is an apocalyptic number.

It is an amenable number.

31331112324 is an abundant number, since it is smaller than the sum of its proper divisors (42166278972).

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

31331112324 is a wasteful number, since it uses less digits than its factorization.

31331112324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7796 (or 7794 counting only the distinct ones).

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

Adding to 31331112324 its reverse (42321113313), we get a palindrome (73652225637).

The spelling of 31331112324 in words is "thirty-one billion, three hundred thirty-one million, one hundred twelve thousand, three hundred twenty-four".