13323121331 has 8 divisors (see below), whose sum is σ = 14349366864. Its totient is φ = 12297074400.

The previous prime is 13323121327. The next prime is 13323121363. The reversal of 13323121331 is 13312132331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13323121331 - 2² = 13323121327 is a prime.

It is a super-2 number, since 2×13323121331² (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 = 13323121297 and 13323121306.

It is not an unprimeable number, because it can be changed into a prime (13323121321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108320 + ... + 195906.

It is an arithmetic number, because the mean of its divisors is an integer number (1793670858).

Almost surely, 2^13323121331 is an apocalyptic number.

13323121331 is a deficient number, since it is larger than the sum of its proper divisors (1026245533).

13323121331 is a wasteful number, since it uses less digits than its factorization.

13323121331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99301.

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

Adding to 13323121331 its reverse (13312132331), we get a palindrome (26635253662).

The spelling of 13323121331 in words is "thirteen billion, three hundred twenty-three million, one hundred twenty-one thousand, three hundred thirty-one".