31210645245 has 16 divisors (see below), whose sum is σ = 53778342912. Its totient is φ = 15365240640.

The previous prime is 31210645229. The next prime is 31210645289. The reversal of 31210645245 is 54254601213.

It is not a de Polignac number, because 31210645245 - 2⁴ = 31210645229 is a prime.

It is a super-2 number, since 2×31210645245² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80027101 + ... + 80027490.

It is an arithmetic number, because the mean of its divisors is an integer number (3361146432).

Almost surely, 2^31210645245 is an apocalyptic number.

It is an amenable number.

31210645245 is a deficient number, since it is larger than the sum of its proper divisors (22567697667).

31210645245 is a wasteful number, since it uses less digits than its factorization.

31210645245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160054612.

The product of its (nonzero) digits is 28800, while the sum is 33.

The spelling of 31210645245 in words is "thirty-one billion, two hundred ten million, six hundred forty-five thousand, two hundred forty-five".