13132111321 has 4 divisors (see below), whose sum is σ = 15008127232. Its totient is φ = 11256095412.

The previous prime is 13132111301. The next prime is 13132111331. The reversal of 13132111321 is 12311123131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12311123131 = 19 ⋅647953849.

It is a cyclic number.

It is not a de Polignac number, because 13132111321 - 2²⁷ = 12997893593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13132111301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 938007945 + ... + 938007958.

It is an arithmetic number, because the mean of its divisors is an integer number (3752031808).

Almost surely, 2^13132111321 is an apocalyptic number.

It is an amenable number.

13132111321 is a deficient number, since it is larger than the sum of its proper divisors (1876015911).

13132111321 is an equidigital number, since it uses as much as digits as its factorization.

13132111321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1876015910.

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

Adding to 13132111321 its reverse (12311123131), we get a palindrome (25443234452).

The spelling of 13132111321 in words is "thirteen billion, one hundred thirty-two million, one hundred eleven thousand, three hundred twenty-one".