13318338220 has 48 divisors (see below), whose sum is σ = 32305881888. Its totient is φ = 4558146560.

The previous prime is 13318338217. The next prime is 13318338221. The reversal of 13318338220 is 2283381331.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (13318338221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1776787 + ... + 1784266.

It is an arithmetic number, because the mean of its divisors is an integer number (673039206).

Almost surely, 2^13318338220 is an apocalyptic number.

13318338220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13318338220 is an abundant number, since it is smaller than the sum of its proper divisors (18987543668).

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

13318338220 is a wasteful number, since it uses less digits than its factorization.

13318338220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3561090 (or 3561088 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The spelling of 13318338220 in words is "thirteen billion, three hundred eighteen million, three hundred thirty-eight thousand, two hundred twenty".