31320124 has 36 divisors (see below), whose sum is σ = 60768232. Its totient is φ = 14113440.

The previous prime is 31320109. The next prime is 31320173. The reversal of 31320124 is 42102313.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 31320098 and 31320107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78694 + ... + 79090.

Almost surely, 2^31320124 is an apocalyptic number.

It is an amenable number.

31320124 is a deficient number, since it is larger than the sum of its proper divisors (29448108).

31320124 is a wasteful number, since it uses less digits than its factorization.

31320124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586 (or 573 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 31320124 is about 5596.4385103385. The cubic root of 31320124 is about 315.2156883419.

Adding to 31320124 its reverse (42102313), we get a palindrome (73422437).

The spelling of 31320124 in words is "thirty-one million, three hundred twenty thousand, one hundred twenty-four".