31112848272 has 80 divisors (see below), whose sum is σ = 87756936768. Its totient is φ = 9420042240.

The previous prime is 31112848271. The next prime is 31112848279. The reversal of 31112848272 is 27284821113.

It is a self number, because there is not a number n which added to its sum of digits gives 31112848272.

It is not an unprimeable number, because it can be changed into a prime (31112848271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 605208 + ... + 654600.

Almost surely, 2^31112848272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31112848272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43878468384).

31112848272 is an abundant number, since it is smaller than the sum of its proper divisors (56644088496).

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

31112848272 is a wasteful number, since it uses less digits than its factorization.

31112848272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50608 (or 50602 counting only the distinct ones).

The product of its digits is 43008, while the sum is 39.

The spelling of 31112848272 in words is "thirty-one billion, one hundred twelve million, eight hundred forty-eight thousand, two hundred seventy-two".