31112230231312 has 40 divisors (see below), whose sum is σ = 63454252264160. Its totient is φ = 14736982613760.

The previous prime is 31112230231297. The next prime is 31112230231339. The reversal of 31112230231312 is 21313203221113.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10331188 + ... + 12998380.

It is an arithmetic number, because the mean of its divisors is an integer number (1586356306604).

Almost surely, 2^{31112230231312} is an apocalyptic number.

It is an amenable number.

31112230231312 is an abundant number, since it is smaller than the sum of its proper divisors (32342022032848).

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

31112230231312 is a wasteful number, since it uses less digits than its factorization.

31112230231312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2705591 (or 2705585 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 31112230231312 its reverse (21313203221113), we get a palindrome (52425433452425).

The spelling of 31112230231312 in words is "thirty-one trillion, one hundred twelve billion, two hundred thirty million, two hundred thirty-one thousand, three hundred twelve".