20132331020020 has 24 divisors (see below), whose sum is σ = 42278132026368. Its totient is φ = 8052887287200.

The previous prime is 20132331019981. The next prime is 20132331020051. The reversal of 20132331020020 is 2002013323102.

It is a self number, because there is not a number n which added to its sum of digits gives 20132331020020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 962425 + ... + 6418015.

It is an arithmetic number, because the mean of its divisors is an integer number (1761588834432).

Almost surely, 2^{20132331020020} is an apocalyptic number.

20132331020020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20132331020020 is an abundant number, since it is smaller than the sum of its proper divisors (22145801006348).

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

20132331020020 is a wasteful number, since it uses less digits than its factorization.

20132331020020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5640111 (or 5640109 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20132331020020 its reverse (2002013323102), we get a palindrome (22134344343122).

The spelling of 20132331020020 in words is "twenty trillion, one hundred thirty-two billion, three hundred thirty-one million, twenty thousand, twenty".