31116963 has 16 divisors (see below), whose sum is σ = 43990016. Its totient is φ = 19530720.

The previous prime is 31116959. The next prime is 31116997. The reversal of 31116963 is 36961113.

It is not a de Polignac number, because 31116963 - 2² = 31116959 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31116963.

It is not an unprimeable number, because it can be changed into a prime (31117963) 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, 1081 + ... + 7962.

It is an arithmetic number, because the mean of its divisors is an integer number (2749376).

Almost surely, 2^31116963 is an apocalyptic number.

31116963 is a deficient number, since it is larger than the sum of its proper divisors (12873053).

31116963 is a wasteful number, since it uses less digits than its factorization.

31116963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9114.

The product of its digits is 2916, while the sum is 30.

The square root of 31116963 is about 5578.2580614382. The cubic root of 31116963 is about 314.5326503713.

The spelling of 31116963 in words is "thirty-one million, one hundred sixteen thousand, nine hundred sixty-three".