1312583331 has 8 divisors (see below), whose sum is σ = 1771197120. Its totient is φ = 864512552.

The previous prime is 1312583323. The next prime is 1312583353. The reversal of 1312583331 is 1333852131.

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

It is a cyclic number.

It is not a de Polignac number, because 1312583331 - 2³ = 1312583323 is a prime.

It is a super-2 number, since 2×1312583331² = 3445750001638111122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1312563331) 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, 2635461 + ... + 2635958.

It is an arithmetic number, because the mean of its divisors is an integer number (221399640).

Almost surely, 2^1312583331 is an apocalyptic number.

1312583331 is a deficient number, since it is larger than the sum of its proper divisors (458613789).

1312583331 is an equidigital number, since it uses as much as digits as its factorization.

1312583331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5271505.

The product of its digits is 6480, while the sum is 30.

The square root of 1312583331 is about 36229.5919242820. The cubic root of 1312583331 is about 1094.9029558917.

The spelling of 1312583331 in words is "one billion, three hundred twelve million, five hundred eighty-three thousand, three hundred thirty-one".