1313311303 has 8 divisors (see below), whose sum is σ = 1347012576. Its totient is φ = 1279689600.

The previous prime is 1313311291. The next prime is 1313311393. The reversal of 1313311303 is 3031133131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1313311303 - 2²⁵ = 1279756871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313311393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14283 + ... + 53203.

It is an arithmetic number, because the mean of its divisors is an integer number (168376572).

Almost surely, 2^1313311303 is an apocalyptic number.

1313311303 is a deficient number, since it is larger than the sum of its proper divisors (33701273).

1313311303 is an equidigital number, since it uses as much as digits as its factorization.

1313311303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39785.

The product of its (nonzero) digits is 243, while the sum is 19.

The square root of 1313311303 is about 36239.6371808549. The cubic root of 1313311303 is about 1095.1053332364.

Adding to 1313311303 its reverse (3031133131), we get a palindrome (4344444434).

The spelling of 1313311303 in words is "one billion, three hundred thirteen million, three hundred eleven thousand, three hundred three".