31033220110112 has 72 divisors (see below), whose sum is σ = 67526852378076. Its totient is φ = 14028075072000.

The previous prime is 31033220110073. The next prime is 31033220110127. The reversal of 31033220110112 is 21101102233013.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 30686680677136 + 346539432976 = 5539556^2 + 588676^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21439439 + ... + 22841102.

Almost surely, 2^{31033220110112} is an apocalyptic number.

31033220110112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31033220110112 is an abundant number, since it is smaller than the sum of its proper divisors (36493632267964).

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

31033220110112 is a wasteful number, since it uses less digits than its factorization.

31033220110112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44280754 (or 44280735 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 31033220110112 its reverse (21101102233013), we get a palindrome (52134322343125).

The spelling of 31033220110112 in words is "thirty-one trillion, thirty-three billion, two hundred twenty million, one hundred ten thousand, one hundred twelve".