31137161007 has 16 divisors (see below), whose sum is σ = 43342265088. Its totient is φ = 19845957120.

The previous prime is 31137160997. The next prime is 31137161039. The reversal of 31137161007 is 70016173113.

It is not a de Polignac number, because 31137161007 - 2¹¹ = 31137158959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31137161047) 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, 35407 + ... + 252047.

It is an arithmetic number, because the mean of its divisors is an integer number (2708891568).

Almost surely, 2^31137161007 is an apocalyptic number.

31137161007 is a deficient number, since it is larger than the sum of its proper divisors (12205104081).

31137161007 is a wasteful number, since it uses less digits than its factorization.

31137161007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218750.

The product of its (nonzero) digits is 2646, while the sum is 30.

The spelling of 31137161007 in words is "thirty-one billion, one hundred thirty-seven million, one hundred sixty-one thousand, seven".