13332121331 has 4 divisors (see below), whose sum is σ = 13657295064. Its totient is φ = 13006947600.

The previous prime is 13332121303. The next prime is 13332121333. The reversal of 13332121331 is 13312123331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13332121331 is a prime.

It is a super-2 number, since 2×13332121331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13332121297 and 13332121306.

It is not an unprimeable number, because it can be changed into a prime (13332121333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162586805 + ... + 162586886.

It is an arithmetic number, because the mean of its divisors is an integer number (3414323766).

Almost surely, 2^13332121331 is an apocalyptic number.

13332121331 is a deficient number, since it is larger than the sum of its proper divisors (325173733).

13332121331 is an equidigital number, since it uses as much as digits as its factorization.

13332121331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325173732.

The product of its digits is 972, while the sum is 23.

Adding to 13332121331 its reverse (13312123331), we get a palindrome (26644244662).

The spelling of 13332121331 in words is "thirteen billion, three hundred thirty-two million, one hundred twenty-one thousand, three hundred thirty-one".