13231320112020 has 24 divisors (see below), whose sum is σ = 37047696313824. Its totient is φ = 3528352029856.

The previous prime is 13231320112013. The next prime is 13231320112067. The reversal of 13231320112020 is 2021102313231.

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, 110261000874 + ... + 110261000993.

It is an arithmetic number, because the mean of its divisors is an integer number (1543654013076).

Almost surely, 2^{13231320112020} is an apocalyptic number.

13231320112020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13231320112020 is an abundant number, since it is smaller than the sum of its proper divisors (23816376201804).

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

13231320112020 is a wasteful number, since it uses less digits than its factorization.

13231320112020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220522001879 (or 220522001877 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 13231320112020 its reverse (2021102313231), we get a palindrome (15252422425251).

The spelling of 13231320112020 in words is "thirteen trillion, two hundred thirty-one billion, three hundred twenty million, one hundred twelve thousand, twenty".