1313331271 has 6 divisors (see below), whose sum is σ = 1527752760. Its totient is φ = 1125712476.

The previous prime is 1313331263. The next prime is 1313331287. The reversal of 1313331271 is 1721333131.

It is not a de Polignac number, because 1313331271 - 2³ = 1313331263 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 (1313334271) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13401291 + ... + 13401388.

It is an arithmetic number, because the mean of its divisors is an integer number (254625460).

Almost surely, 2^1313331271 is an apocalyptic number.

1313331271 is a deficient number, since it is larger than the sum of its proper divisors (214421489).

1313331271 is an equidigital number, since it uses as much as digits as its factorization.

1313331271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26802693 (or 26802686 counting only the distinct ones).

The product of its digits is 1134, while the sum is 25.

The square root of 1313331271 is about 36239.9126792546. The cubic root of 1313331271 is about 1095.1108833175.

The spelling of 1313331271 in words is "one billion, three hundred thirteen million, three hundred thirty-one thousand, two hundred seventy-one".