1312110331 has 8 divisors (see below), whose sum is σ = 1536129504. Its totient is φ = 1097234880.

The previous prime is 1312110323. The next prime is 1312110343. The reversal of 1312110331 is 1330112131.

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

It is not a de Polignac number, because 1312110331 - 2³ = 1312110323 is a prime.

It is a super-2 number, since 2×1312110331² = 3443267041433859122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1312110311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2285620 + ... + 2286193.

It is an arithmetic number, because the mean of its divisors is an integer number (192016188).

Almost surely, 2^1312110331 is an apocalyptic number.

1312110331 is a deficient number, since it is larger than the sum of its proper divisors (224019173).

1312110331 is an equidigital number, since it uses as much as digits as its factorization.

1312110331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4571861.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 1312110331 is about 36223.0635231202. The cubic root of 1312110331 is about 1094.7714210508.

Adding to 1312110331 its reverse (1330112131), we get a palindrome (2642222462).

The spelling of 1312110331 in words is "one billion, three hundred twelve million, one hundred ten thousand, three hundred thirty-one".