13320140215 has 4 divisors (see below), whose sum is σ = 15984168264. Its totient is φ = 10656112168.

The previous prime is 13320140173. The next prime is 13320140219. The reversal of 13320140215 is 51204102331.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 13320140215 - 2²⁷ = 13185922487 is a prime.

It is a super-2 number, since 2×13320140215² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13320140219) 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, 1332014017 + ... + 1332014026.

It is an arithmetic number, because the mean of its divisors is an integer number (3996042066).

Almost surely, 2^13320140215 is an apocalyptic number.

13320140215 is a deficient number, since it is larger than the sum of its proper divisors (2664028049).

13320140215 is an equidigital number, since it uses as much as digits as its factorization.

13320140215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2664028048.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 13320140215 its reverse (51204102331), we get a palindrome (64524242546).

The spelling of 13320140215 in words is "thirteen billion, three hundred twenty million, one hundred forty thousand, two hundred fifteen".