31366271172 has 24 divisors (see below), whose sum is σ = 73452190336. Its totient is φ = 10417677408.

The previous prime is 31366271171. The next prime is 31366271191. The reversal of 31366271172 is 27117266313.

It is a self number, because there is not a number n which added to its sum of digits gives 31366271172.

It is not an unprimeable number, because it can be changed into a prime (31366271171) 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, 4714828 + ... + 4721475.

Almost surely, 2^31366271172 is an apocalyptic number.

It is an amenable number.

31366271172 is an abundant number, since it is smaller than the sum of its proper divisors (42085919164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31366271172 is a wasteful number, since it uses less digits than its factorization.

31366271172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9436587 (or 9436585 counting only the distinct ones).

The product of its digits is 63504, while the sum is 39.

The spelling of 31366271172 in words is "thirty-one billion, three hundred sixty-six million, two hundred seventy-one thousand, one hundred seventy-two".