3131302985 has 32 divisors (see below), whose sum is σ = 3934275840. Its totient is φ = 2389540608.

The previous prime is 3131302969. The next prime is 3131302991. The reversal of 3131302985 is 5892031313.

It is a happy number.

3131302985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3131302985 - 2⁴ = 3131302969 is a prime.

It is a super-3 number, since 3×3131302985³ (a number of 29 digits) contains 333 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5986934 + ... + 5987456.

It is an arithmetic number, because the mean of its divisors is an integer number (122946120).

Almost surely, 2^3131302985 is an apocalyptic number.

It is an amenable number.

3131302985 is a deficient number, since it is larger than the sum of its proper divisors (802972855).

3131302985 is a wasteful number, since it uses less digits than its factorization.

3131302985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 3131302985 is about 55958.0466510403. The cubic root of 3131302985 is about 1462.9911444640.

The spelling of 3131302985 in words is "three billion, one hundred thirty-one million, three hundred two thousand, nine hundred eighty-five".