13331135321 has 4 divisors (see below), whose sum is σ = 15235583232. Its totient is φ = 11426687412.

The previous prime is 13331135291. The next prime is 13331135333. The reversal of 13331135321 is 12353113331.

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.

It is a de Polignac number, because none of the positive numbers 2^k-13331135321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13331135381) 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, 952223945 + ... + 952223958.

It is an arithmetic number, because the mean of its divisors is an integer number (3808895808).

Almost surely, 2^13331135321 is an apocalyptic number.

It is an amenable number.

13331135321 is a deficient number, since it is larger than the sum of its proper divisors (1904447911).

13331135321 is an equidigital number, since it uses as much as digits as its factorization.

13331135321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1904447910.

The product of its digits is 2430, while the sum is 26.

Adding to 13331135321 its reverse (12353113331), we get a palindrome (25684248652).

The spelling of 13331135321 in words is "thirteen billion, three hundred thirty-one million, one hundred thirty-five thousand, three hundred twenty-one".