13320307331 has 8 divisors (see below), whose sum is σ = 14037071904. Its totient is φ = 12615011200.

The previous prime is 13320307307. The next prime is 13320307337. The reversal of 13320307331 is 13370302331.

It is a happy number.

13320307331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 13320307331 - 2²⁶ = 13253198467 is a prime.

It is a super-2 number, since 2×13320307331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13320307331.

It is not an unprimeable number, because it can be changed into a prime (13320307337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2864726 + ... + 2869371.

It is an arithmetic number, because the mean of its divisors is an integer number (1754633988).

Almost surely, 2^13320307331 is an apocalyptic number.

13320307331 is a deficient number, since it is larger than the sum of its proper divisors (716764573).

13320307331 is a wasteful number, since it uses less digits than its factorization.

13320307331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5734221.

The product of its (nonzero) digits is 3402, while the sum is 26.

Adding to 13320307331 its reverse (13370302331), we get a palindrome (26690609662).

Subtracting 13320307331 from its reverse (13370302331), we obtain a triangular number (49995000 = T₉₉₉₉).

The spelling of 13320307331 in words is "thirteen billion, three hundred twenty million, three hundred seven thousand, three hundred thirty-one".