1313110331 has 8 divisors (see below), whose sum is σ = 1416740304. Its totient is φ = 1209854880.

The previous prime is 1313110289. The next prime is 1313110373. The reversal of 1313110331 is 1330113131.

It is an interprime number because it is at equal distance from previous prime (1313110289) and next prime (1313110373).

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

It is not a de Polignac number, because 1313110331 - 2²⁶ = 1246001467 is a prime.

It is a super-2 number, since 2×1313110331² = 3448517482757859122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1313110391) 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, 86321 + ... + 100386.

It is an arithmetic number, because the mean of its divisors is an integer number (177092538).

Almost surely, 2^1313110331 is an apocalyptic number.

1313110331 is a deficient number, since it is larger than the sum of its proper divisors (103629973).

1313110331 is a wasteful number, since it uses less digits than its factorization.

1313110331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187261.

The product of its (nonzero) digits is 81, while the sum is 17.

The square root of 1313110331 is about 36236.8642545130. The cubic root of 1313110331 is about 1095.0494701836.

Adding to 1313110331 its reverse (1330113131), we get a palindrome (2643223462).

The spelling of 1313110331 in words is "one billion, three hundred thirteen million, one hundred ten thousand, three hundred thirty-one".