13231230313220 has 24 divisors (see below), whose sum is σ = 28431760023744. Its totient is φ = 5169410912736.

The previous prime is 13231230313199. The next prime is 13231230313297. The reversal of 13231230313220 is 2231303213231.

It is a self number, because there is not a number n which added to its sum of digits gives 13231230313220.

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, 7692574904 + ... + 7692576623.

It is an arithmetic number, because the mean of its divisors is an integer number (1184656667656).

Almost surely, 2^{13231230313220} is an apocalyptic number.

13231230313220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13231230313220 is an abundant number, since it is smaller than the sum of its proper divisors (15200529710524).

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

13231230313220 is a wasteful number, since it uses less digits than its factorization.

13231230313220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15385151579 (or 15385151577 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 13231230313220 its reverse (2231303213231), we get a palindrome (15462533526451).

The spelling of 13231230313220 in words is "thirteen trillion, two hundred thirty-one billion, two hundred thirty million, three hundred thirteen thousand, two hundred twenty".