2013320320 has 64 divisors (see below), whose sum is σ = 5250666240. Its totient is φ = 732113920.

The previous prime is 2013320317. The next prime is 2013320347. The reversal of 2013320320 is 230233102.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 2013320294 and 2013320303.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135952 + ... + 150031.

It is an arithmetic number, because the mean of its divisors is an integer number (82041660).

Almost surely, 2^2013320320 is an apocalyptic number.

2013320320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2013320320 is an abundant number, since it is smaller than the sum of its proper divisors (3237345920).

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

2013320320 is a wasteful number, since it uses less digits than its factorization.

2013320320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286013 (or 286001 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 2013320320 is about 44870.0381100796. The cubic root of 2013320320 is about 1262.7119550031.

Adding to 2013320320 its reverse (230233102), we get a palindrome (2243553422).

The spelling of 2013320320 in words is "two billion, thirteen million, three hundred twenty thousand, three hundred twenty".