1312105339 has 8 divisors (see below), whose sum is σ = 1390545360. Its totient is φ = 1233805056.

The previous prime is 1312105331. The next prime is 1312105343. The reversal of 1312105339 is 9335012131.

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

It is not a de Polignac number, because 1312105339 - 2³ = 1312105331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312105331) 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, 15274 + ... + 53455.

It is an arithmetic number, because the mean of its divisors is an integer number (173818170).

Almost surely, 2^1312105339 is an apocalyptic number.

1312105339 is a deficient number, since it is larger than the sum of its proper divisors (78440021).

1312105339 is a wasteful number, since it uses less digits than its factorization.

1312105339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69869.

The product of its (nonzero) digits is 2430, while the sum is 28.

The square root of 1312105339 is about 36222.9946166796. The cubic root of 1312105339 is about 1094.7700326752.

The spelling of 1312105339 in words is "one billion, three hundred twelve million, one hundred five thousand, three hundred thirty-nine".