1310230331 has 4 divisors (see below), whose sum is σ = 1334951712. Its totient is φ = 1285508952.

The previous prime is 1310230319. The next prime is 1310230343. The reversal of 1310230331 is 1330320131.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1310230319) and next prime (1310230343).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1310230331 is a prime.

It is a super-2 number, since 2×1310230331² = 3433407040544739122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1310230391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12360611 + ... + 12360716.

It is an arithmetic number, because the mean of its divisors is an integer number (333737928).

Almost surely, 2^1310230331 is an apocalyptic number.

1310230331 is a deficient number, since it is larger than the sum of its proper divisors (24721381).

1310230331 is an equidigital number, since it uses as much as digits as its factorization.

1310230331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24721380.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 1310230331 is about 36197.1039034893. The cubic root of 1310230331 is about 1094.2483059863.

Adding to 1310230331 its reverse (1330320131), we get a palindrome (2640550462).

The spelling of 1310230331 in words is "one billion, three hundred ten million, two hundred thirty thousand, three hundred thirty-one".