13213040320 has 56 divisors (see below), whose sum is σ = 32548525200. Its totient is φ = 5102963712.

The previous prime is 13213040297. The next prime is 13213040329. The reversal of 13213040320 is 2304031231.

It is not an unprimeable number, because it can be changed into a prime (13213040329) 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, 702630 + ... + 721189.

Almost surely, 2^13213040320 is an apocalyptic number.

13213040320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13213040320 is an abundant number, since it is smaller than the sum of its proper divisors (19335484880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13213040320 is a wasteful number, since it uses less digits than its factorization.

13213040320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1423865 (or 1423855 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 13213040320 its reverse (2304031231), we get a palindrome (15517071551).

The spelling of 13213040320 in words is "thirteen billion, two hundred thirteen million, forty thousand, three hundred twenty".