20133112020 has 96 divisors (see below), whose sum is σ = 64447439616. Its totient is φ = 4600320000.

The previous prime is 20133111959. The next prime is 20133112039. The reversal of 20133112020 is 2021133102.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1674430 + ... + 1686410.

It is an arithmetic number, because the mean of its divisors is an integer number (671327496).

Almost surely, 2^20133112020 is an apocalyptic number.

20133112020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20133112020 is an abundant number, since it is smaller than the sum of its proper divisors (44314327596).

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

20133112020 is a wasteful number, since it uses less digits than its factorization.

20133112020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16001 (or 15999 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20133112020 its reverse (2021133102), we get a palindrome (22154245122).

The spelling of 20133112020 in words is "twenty billion, one hundred thirty-three million, one hundred twelve thousand, twenty".