13201331421 has 16 divisors (see below), whose sum is σ = 17698262400. Its totient is φ = 8752773120.

The previous prime is 13201331389. The next prime is 13201331467. The reversal of 13201331421 is 12413310231.

It is not a de Polignac number, because 13201331421 - 2⁵ = 13201331389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13201331621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 403161 + ... + 434673.

It is an arithmetic number, because the mean of its divisors is an integer number (1106141400).

Almost surely, 2^13201331421 is an apocalyptic number.

It is an amenable number.

13201331421 is a deficient number, since it is larger than the sum of its proper divisors (4496930979).

13201331421 is a wasteful number, since it uses less digits than its factorization.

13201331421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32276.

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

Adding to 13201331421 its reverse (12413310231), we get a palindrome (25614641652).

The spelling of 13201331421 in words is "thirteen billion, two hundred one million, three hundred thirty-one thousand, four hundred twenty-one".