2003321113 has 4 divisors (see below), whose sum is σ = 2006655028. Its totient is φ = 1999987200.

The previous prime is 2003321071. The next prime is 2003321141. The reversal of 2003321113 is 3111233002.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1140547984 + 862773129 = 33772^2 + 29373^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2003321113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2003321513) 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, 1666056 + ... + 1667257.

It is an arithmetic number, because the mean of its divisors is an integer number (501663757).

Almost surely, 2^2003321113 is an apocalyptic number.

It is an amenable number.

2003321113 is a deficient number, since it is larger than the sum of its proper divisors (3333915).

2003321113 is an equidigital number, since it uses as much as digits as its factorization.

2003321113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3333914.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 2003321113 is about 44758.4753203234. The cubic root of 2003321113 is about 1260.6180542617.

Adding to 2003321113 its reverse (3111233002), we get a palindrome (5114554115).

The spelling of 2003321113 in words is "two billion, three million, three hundred twenty-one thousand, one hundred thirteen".