31105124 has 12 divisors (see below), whose sum is σ = 54505584. Its totient is φ = 15532104.

The previous prime is 31105111. The next prime is 31105141. The reversal of 31105124 is 42150113.

It is a super-4 number, since 4×31105124⁴ (a number of 31 digits) contains 4444 as substring.

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 3 ways as a sum of consecutive naturals, for example, 1394 + ... + 8009.

It is an arithmetic number, because the mean of its divisors is an integer number (4542132).

Almost surely, 2^31105124 is an apocalyptic number.

It is an amenable number.

31105124 is a deficient number, since it is larger than the sum of its proper divisors (23400460).

31105124 is a wasteful number, since it uses less digits than its factorization.

31105124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10234 (or 10232 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 31105124 is about 5577.1967869172. The cubic root of 31105124 is about 314.4927554710.

Adding to 31105124 its reverse (42150113), we get a palindrome (73255237).

The spelling of 31105124 in words is "thirty-one million, one hundred five thousand, one hundred twenty-four".