2003313391 has 2 divisors, whose sum is σ = 2003313392. Its totient is φ = 2003313390.

The previous prime is 2003313379. The next prime is 2003313413. The reversal of 2003313391 is 1933133002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2003313391 - 2⁹ = 2003312879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2003313491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001656695 + 1001656696.

It is an arithmetic number, because the mean of its divisors is an integer number (1001656696).

Almost surely, 2^2003313391 is an apocalyptic number.

2003313391 is a deficient number, since it is larger than the sum of its proper divisors (1).

2003313391 is an equidigital number, since it uses as much as digits as its factorization.

2003313391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458, while the sum is 25.

The square root of 2003313391 is about 44758.3890572483. The cubic root of 2003313391 is about 1260.6164345338.

Adding to 2003313391 its reverse (1933133002), we get a palindrome (3936446393).

The spelling of 2003313391 in words is "two billion, three million, three hundred thirteen thousand, three hundred ninety-one".