31033220020112 has 80 divisors (see below), whose sum is σ = 62145497576448. Its totient is φ = 14996955678720.

The previous prime is 31033220020091. The next prime is 31033220020123. The reversal of 31033220020112 is 21102002233013.

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, 3156022748 + ... + 3156032580.

Almost surely, 2^{31033220020112} 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 31033220020112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31072748788224).

31033220020112 is an abundant number, since it is smaller than the sum of its proper divisors (31112277556336).

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

31033220020112 is a wasteful number, since it uses less digits than its factorization.

31033220020112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17328 (or 17322 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 31033220020112 its reverse (21102002233013), we get a palindrome (52135222253125).

The spelling of 31033220020112 in words is "thirty-one trillion, thirty-three billion, two hundred twenty million, twenty thousand, one hundred twelve".