2003313313 has 4 divisors (see below), whose sum is σ = 2006488768. Its totient is φ = 2000137860.

The previous prime is 2003313307. The next prime is 2003313353. The reversal of 2003313313 is 3133133002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2003313313 - 2⁵ = 2003313281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2003313353) 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, 1586781 + ... + 1588042.

It is an arithmetic number, because the mean of its divisors is an integer number (501622192).

Almost surely, 2^2003313313 is an apocalyptic number.

It is an amenable number.

2003313313 is a deficient number, since it is larger than the sum of its proper divisors (3175455).

2003313313 is an equidigital number, since it uses as much as digits as its factorization.

2003313313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3175454.

The product of its (nonzero) digits is 486, while the sum is 19.

The square root of 2003313313 is about 44758.3881859032. The cubic root of 2003313313 is about 1260.6164181729.

Adding to 2003313313 its reverse (3133133002), we get a palindrome (5136446315).

The spelling of 2003313313 in words is "two billion, three million, three hundred thirteen thousand, three hundred thirteen".