13320331331 has 8 divisors (see below), whose sum is σ = 13541449920. Its totient is φ = 13100525568.

The previous prime is 13320331319. The next prime is 13320331391. The reversal of 13320331331 is 13313302331.

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

It is a cyclic number.

It is not a de Polignac number, because 13320331331 - 2⁶ = 13320331267 is a prime.

It is a super-2 number, since 2×13320331331² (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 = 13320331297 and 13320331306.

It is not an unprimeable number, because it can be changed into a prime (13320331391) 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, 307736 + ... + 348341.

It is an arithmetic number, because the mean of its divisors is an integer number (1692681240).

Almost surely, 2^13320331331 is an apocalyptic number.

13320331331 is a deficient number, since it is larger than the sum of its proper divisors (221118589).

13320331331 is an equidigital number, since it uses as much as digits as its factorization.

13320331331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656413.

The product of its (nonzero) digits is 1458, while the sum is 23.

Adding to 13320331331 its reverse (13313302331), we get a palindrome (26633633662).

The spelling of 13320331331 in words is "thirteen billion, three hundred twenty million, three hundred thirty-one thousand, three hundred thirty-one".