31027215197 has 8 divisors (see below), whose sum is σ = 34176492480. Its totient is φ = 27932708160.

The previous prime is 31027215181. The next prime is 31027215203. The reversal of 31027215197 is 79151272013.

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 31027215197 - 2⁴ = 31027215181 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31027215197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31027215157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13691372 + ... + 13693637.

It is an arithmetic number, because the mean of its divisors is an integer number (4272061560).

Almost surely, 2^31027215197 is an apocalyptic number.

It is an amenable number.

31027215197 is a deficient number, since it is larger than the sum of its proper divisors (3149277283).

31027215197 is a wasteful number, since it uses less digits than its factorization.

31027215197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27385123.

The product of its (nonzero) digits is 26460, while the sum is 38.

The spelling of 31027215197 in words is "thirty-one billion, twenty-seven million, two hundred fifteen thousand, one hundred ninety-seven".