31168113 has 24 divisors (see below), whose sum is σ = 45280800. Its totient is φ = 19016640.

The previous prime is 31168079. The next prime is 31168117. The reversal of 31168113 is 31186113.

It is not a de Polignac number, because 31168113 - 2¹² = 31164017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31168117) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54493 + ... + 55061.

It is an arithmetic number, because the mean of its divisors is an integer number (1886700).

Almost surely, 2^31168113 is an apocalyptic number.

It is an amenable number.

31168113 is a deficient number, since it is larger than the sum of its proper divisors (14112687).

31168113 is a wasteful number, since it uses less digits than its factorization.

31168113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653 (or 622 counting only the distinct ones).

The product of its digits is 432, while the sum is 24.

The square root of 31168113 is about 5582.8409434624. The cubic root of 31168113 is about 314.7048987339.

The spelling of 31168113 in words is "thirty-one million, one hundred sixty-eight thousand, one hundred thirteen".