2003013113 has 4 divisors (see below), whose sum is σ = 2022845028. Its totient is φ = 1983181200.

The previous prime is 2003013101. The next prime is 2003013127. The reversal of 2003013113 is 3113103002.

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 1909078249 + 93934864 = 43693^2 + 9692^2 .

It is a cyclic number.

It is not a de Polignac number, because 2003013113 - 2¹² = 2003009017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2003013413) 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, 9915806 + ... + 9916007.

It is an arithmetic number, because the mean of its divisors is an integer number (505711257).

Almost surely, 2^2003013113 is an apocalyptic number.

It is an amenable number.

2003013113 is a deficient number, since it is larger than the sum of its proper divisors (19831915).

2003013113 is a wasteful number, since it uses less digits than its factorization.

2003013113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19831914.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 2003013113 is about 44755.0344989254. The cubic root of 2003013113 is about 1260.5534465031.

Adding to 2003013113 its reverse (3113103002), we get a palindrome (5116116115).

The spelling of 2003013113 in words is "two billion, three million, thirteen thousand, one hundred thirteen".