31000113197 has 8 divisors (see below), whose sum is σ = 31568589600. Its totient is φ = 30433581360.

The previous prime is 31000113187. The next prime is 31000113211. The reversal of 31000113197 is 79131100013.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31000113197 - 2²² = 30995918893 is a prime.

It is a super-2 number, since 2×31000113197² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31000113187) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 453947 + ... + 517752.

It is an arithmetic number, because the mean of its divisors is an integer number (3946073700).

Almost surely, 2^31000113197 is an apocalyptic number.

It is an amenable number.

31000113197 is a deficient number, since it is larger than the sum of its proper divisors (568476403).

31000113197 is an equidigital number, since it uses as much as digits as its factorization.

31000113197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972283.

The product of its (nonzero) digits is 567, while the sum is 26.

The spelling of 31000113197 in words is "thirty-one billion, one hundred thirteen thousand, one hundred ninety-seven".