13131032020 has 48 divisors (see below), whose sum is σ = 28623667968. Its totient is φ = 5056364160.

The previous prime is 13131032017. The next prime is 13131032053. The reversal of 13131032020 is 2023013131.

It is a junction number, because it is equal to n+sod(n) for n = 13131031985 and 13131032003.

It is a congruent number.

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, 57162 + ... + 171841.

It is an arithmetic number, because the mean of its divisors is an integer number (596326416).

Almost surely, 2^13131032020 is an apocalyptic number.

13131032020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13131032020 is an abundant number, since it is smaller than the sum of its proper divisors (15492635948).

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

13131032020 is a wasteful number, since it uses less digits than its factorization.

13131032020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229120 (or 229118 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 13131032020 its reverse (2023013131), we get a palindrome (15154045151).

The spelling of 13131032020 in words is "thirteen billion, one hundred thirty-one million, thirty-two thousand, twenty".