1313400303 has 12 divisors (see below), whose sum is σ = 1979618160. Its totient is φ = 837530496.

The previous prime is 1313400293. The next prime is 1313400311. The reversal of 1313400303 is 3030043131.

It is not a de Polignac number, because 1313400303 - 2²⁰ = 1312351727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313400203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3172258 + ... + 3172671.

It is an arithmetic number, because the mean of its divisors is an integer number (164968180).

Almost surely, 2^1313400303 is an apocalyptic number.

1313400303 is a deficient number, since it is larger than the sum of its proper divisors (666217857).

1313400303 is a wasteful number, since it uses less digits than its factorization.

1313400303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6344958 (or 6344955 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 1313400303 is about 36240.8650972904. The cubic root of 1313400303 is about 1095.1300702435.

Adding to 1313400303 its reverse (3030043131), we get a palindrome (4343443434).

The spelling of 1313400303 in words is "one billion, three hundred thirteen million, four hundred thousand, three hundred three".