31024113 has 16 divisors (see below), whose sum is σ = 43792320. Its totient is φ = 19502784.

The previous prime is 31024109. The next prime is 31024121. The reversal of 31024113 is 31142013.

It is not a de Polignac number, because 31024113 - 2² = 31024109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31024092 and 31024101.

It is not an unprimeable number, because it can be changed into a prime (31024153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 406 + ... + 7887.

It is an arithmetic number, because the mean of its divisors is an integer number (2737020).

Almost surely, 2^31024113 is an apocalyptic number.

It is an amenable number.

31024113 is a deficient number, since it is larger than the sum of its proper divisors (12768207).

31024113 is a wasteful number, since it uses less digits than its factorization.

31024113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8368.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 31024113 is about 5569.9293532324. The cubic root of 31024113 is about 314.2194937125.

Adding to 31024113 its reverse (31142013), we get a palindrome (62166126).

The spelling of 31024113 in words is "thirty-one million, twenty-four thousand, one hundred thirteen".