31013230110112 has 96 divisors (see below), whose sum is σ = 65754465638400. Its totient is φ = 14344954748928.

The previous prime is 31013230110101. The next prime is 31013230110127. The reversal of 31013230110112 is 21101103231013.

It is a self number, because there is not a number n which added to its sum of digits gives 31013230110112.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 225855108 + ... + 225992380.

It is an arithmetic number, because the mean of its divisors is an integer number (684942350400).

Almost surely, 2^{31013230110112} is an apocalyptic number.

31013230110112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31013230110112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32877232819200).

31013230110112 is an abundant number, since it is smaller than the sum of its proper divisors (34741235528288).

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

31013230110112 is a wasteful number, since it uses less digits than its factorization.

31013230110112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144398 (or 144390 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 31013230110112 its reverse (21101103231013), we get a palindrome (52114333341125).

The spelling of 31013230110112 in words is "thirty-one trillion, thirteen billion, two hundred thirty million, one hundred ten thousand, one hundred twelve".