13321131121 has 16 divisors (see below), whose sum is σ = 14134095360. Its totient is φ = 12533149440.

The previous prime is 13321131113. The next prime is 13321131137. The reversal of 13321131121 is 12113112331.

It is a cyclic number.

It is not a de Polignac number, because 13321131121 - 2³ = 13321131113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13321134121) 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, 527616 + ... + 552286.

It is an arithmetic number, because the mean of its divisors is an integer number (883380960).

Almost surely, 2^13321131121 is an apocalyptic number.

It is an amenable number.

13321131121 is a deficient number, since it is larger than the sum of its proper divisors (812964239).

13321131121 is a wasteful number, since it uses less digits than its factorization.

13321131121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25176.

The product of its digits is 108, while the sum is 19.

Adding to 13321131121 its reverse (12113112331), we get a palindrome (25434243452).

The spelling of 13321131121 in words is "thirteen billion, three hundred twenty-one million, one hundred thirty-one thousand, one hundred twenty-one".