31097668311 has 40 divisors (see below), whose sum is σ = 46864595184. Its totient is φ = 20549168640.

The previous prime is 31097668307. The next prime is 31097668367. The reversal of 31097668311 is 11386679013.

It is not a de Polignac number, because 31097668311 - 2² = 31097668307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31097661311) by changing a digit.

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 39 ways as a sum of consecutive naturals, for example, 15416775 + ... + 15418791.

Almost surely, 2^31097668311 is an apocalyptic number.

31097668311 is a deficient number, since it is larger than the sum of its proper divisors (15766926873).

31097668311 is a wasteful number, since it uses less digits than its factorization.

31097668311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3613 (or 3604 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The spelling of 31097668311 in words is "thirty-one billion, ninety-seven million, six hundred sixty-eight thousand, three hundred eleven".