2003320320 has 80 divisors (see below), whose sum is σ = 6404389200. Its totient is φ = 534216704.

The previous prime is 2003320303. The next prime is 2003320321. The reversal of 2003320320 is 230233002.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2003320320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2003320321) 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, 122745 + ... + 138104.

It is an arithmetic number, because the mean of its divisors is an integer number (80054865).

Almost surely, 2^2003320320 is an apocalyptic number.

2003320320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2003320320 is an abundant number, since it is smaller than the sum of its proper divisors (4401068880).

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

2003320320 is an equidigital number, since it uses as much as digits as its factorization.

2003320320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260875 (or 260859 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 15.

The square root of 2003320320 is about 44758.4664616651. The cubic root of 2003320320 is about 1260.6178879262.

Adding to 2003320320 its reverse (230233002), we get a palindrome (2233553322).

The spelling of 2003320320 in words is "two billion, three million, three hundred twenty thousand, three hundred twenty".