31302112203312 has 80 divisors (see below), whose sum is σ = 88820638805760. Its totient is φ = 9455100247296.

The previous prime is 31302112203283. The next prime is 31302112203317. The reversal of 31302112203312 is 21330221120313.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (31302112203317) 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, 746120143 + ... + 746162094.

It is an arithmetic number, because the mean of its divisors is an integer number (1110257985072).

Almost surely, 2^{31302112203312} is an apocalyptic number.

It is an amenable number.

31302112203312 is an abundant number, since it is smaller than the sum of its proper divisors (57518526602448).

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

31302112203312 is a wasteful number, since it uses less digits than its factorization.

31302112203312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1492282290 (or 1492282284 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 31302112203312 its reverse (21330221120313), we get a palindrome (52632333323625).

The spelling of 31302112203312 in words is "thirty-one trillion, three hundred two billion, one hundred twelve million, two hundred three thousand, three hundred twelve".