31113424 has 40 divisors (see below), whose sum is σ = 63245952. Its totient is φ = 14810880.

The previous prime is 31113413. The next prime is 31113443. The reversal of 31113424 is 42431113.

It is a hoax number, since the sum of its digits (19) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27657 + ... + 28759.

Almost surely, 2^31113424 is an apocalyptic number.

It is an amenable number.

31113424 is an abundant number, since it is smaller than the sum of its proper divisors (32132528).

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

31113424 is a wasteful number, since it uses less digits than its factorization.

31113424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1195 (or 1189 counting only the distinct ones).

The product of its digits is 288, while the sum is 19.

The square root of 31113424 is about 5577.9408386967. The cubic root of 31113424 is about 314.5207257580.

Adding to 31113424 its reverse (42431113), we get a palindrome (73544537).

The spelling of 31113424 in words is "thirty-one million, one hundred thirteen thousand, four hundred twenty-four".