313003903 has 2 divisors, whose sum is σ = 313003904. Its totient is φ = 313003902.

The previous prime is 313003897. The next prime is 313003961. The reversal of 313003903 is 309300313.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 313003903 - 2²¹ = 310906751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313003703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156501951 + 156501952.

It is an arithmetic number, because the mean of its divisors is an integer number (156501952).

Almost surely, 2^313003903 is an apocalyptic number.

313003903 is a deficient number, since it is larger than the sum of its proper divisors (1).

313003903 is an equidigital number, since it uses as much as digits as its factorization.

313003903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 729, while the sum is 22.

The square root of 313003903 is about 17691.9163179120. The cubic root of 313003903 is about 678.9689557884.

The spelling of 313003903 in words is "three hundred thirteen million, three thousand, nine hundred three".