31097349512 has 32 divisors (see below), whose sum is σ = 58989072000. Its totient is φ = 15367968000.

The previous prime is 31097349473. The next prime is 31097349551. The reversal of 31097349512 is 21594379013.

It is an interprime number because it is at equal distance from previous prime (31097349473) and next prime (31097349551).

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 7 ways as a sum of consecutive naturals, for example, 175712 + ... + 305072.

It is an arithmetic number, because the mean of its divisors is an integer number (1843408500).

Almost surely, 2^31097349512 is an apocalyptic number.

It is an amenable number.

31097349512 is a deficient number, since it is larger than the sum of its proper divisors (27891722488).

31097349512 is a wasteful number, since it uses less digits than its factorization.

31097349512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129717 (or 129713 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 44.

The spelling of 31097349512 in words is "thirty-one billion, ninety-seven million, three hundred forty-nine thousand, five hundred twelve".