13231032020 has 96 divisors (see below), whose sum is σ = 29199139200. Its totient is φ = 5030843904.

The previous prime is 13231032013. The next prime is 13231032037. The reversal of 13231032020 is 2023013231.

It is a self number, because there is not a number n which added to its sum of digits gives 13231032020.

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, 7814294 + ... + 7815986.

It is an arithmetic number, because the mean of its divisors is an integer number (304157700).

Almost surely, 2^13231032020 is an apocalyptic number.

13231032020 is a gapful number since it is divisible by the number (10) 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 13231032020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14599569600).

13231032020 is an abundant number, since it is smaller than the sum of its proper divisors (15968107180).

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

13231032020 is a wasteful number, since it uses less digits than its factorization.

13231032020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1977 (or 1975 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 13231032020 its reverse (2023013231), we get a palindrome (15254045251).

The spelling of 13231032020 in words is "thirteen billion, two hundred thirty-one million, thirty-two thousand, twenty".