2003001313 has 4 divisors (see below), whose sum is σ = 2028355840. Its totient is φ = 1977646788.

The previous prime is 2003001289. The next prime is 2003001323. The reversal of 2003001313 is 3131003002.

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 2003001313 - 2¹⁷ = 2002870241 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2003001293 and 2003001302.

It is not an unprimeable number, because it can be changed into a prime (2003001323) 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, 12677145 + ... + 12677302.

It is an arithmetic number, because the mean of its divisors is an integer number (507088960).

Almost surely, 2^2003001313 is an apocalyptic number.

It is an amenable number.

2003001313 is a deficient number, since it is larger than the sum of its proper divisors (25354527).

2003001313 is an equidigital number, since it uses as much as digits as its factorization.

2003001313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25354526.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 2003001313 is about 44754.9026699869. The cubic root of 2003001313 is about 1260.5509711391.

Adding to 2003001313 its reverse (3131003002), we get a palindrome (5134004315).

The spelling of 2003001313 in words is "two billion, three million, one thousand, three hundred thirteen".