13231457620 has 24 divisors (see below), whose sum is σ = 27788342400. Its totient is φ = 5292148512.

The previous prime is 13231457599. The next prime is 13231457623. The reversal of 13231457620 is 2675413231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13231457623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 350841 + ... + 386719.

It is an arithmetic number, because the mean of its divisors is an integer number (1157847600).

Almost surely, 2^13231457620 is an apocalyptic number.

13231457620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13231457620 is an abundant number, since it is smaller than the sum of its proper divisors (14556884780).

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

13231457620 is a wasteful number, since it uses less digits than its factorization.

13231457620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54327 (or 54325 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 34.

The spelling of 13231457620 in words is "thirteen billion, two hundred thirty-one million, four hundred fifty-seven thousand, six hundred twenty".