1310312031 has 8 divisors (see below), whose sum is σ = 1996665984. Its totient is φ = 748749720.

The previous prime is 1310312027. The next prime is 1310312053. The reversal of 1310312031 is 1302130131.

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

It is not a de Polignac number, because 1310312031 - 2² = 1310312027 is a prime.

It is a super-2 number, since 2×1310312031² = 3433835237166689922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1310312031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310312021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31197885 + ... + 31197926.

It is an arithmetic number, because the mean of its divisors is an integer number (249583248).

Almost surely, 2^1310312031 is an apocalyptic number.

1310312031 is a deficient number, since it is larger than the sum of its proper divisors (686353953).

1310312031 is an equidigital number, since it uses as much as digits as its factorization.

1310312031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62395821.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 1310312031 is about 36198.2324292223. The cubic root of 1310312031 is about 1094.2710496282.

Adding to 1310312031 its reverse (1302130131), we get a palindrome (2612442162).

The spelling of 1310312031 in words is "one billion, three hundred ten million, three hundred twelve thousand, thirty-one".