1312718843 has 8 divisors (see below), whose sum is σ = 1359396000. Its totient is φ = 1266135808.

The previous prime is 1312718831. The next prime is 1312718857. The reversal of 1312718843 is 3488172131.

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 1312718843 - 2⁸ = 1312718587 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1312718797 and 1312718806.

It is not an unprimeable number, because it can be changed into a prime (1312718543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5483 + ... + 51531.

It is an arithmetic number, because the mean of its divisors is an integer number (169924500).

Almost surely, 2^1312718843 is an apocalyptic number.

1312718843 is a deficient number, since it is larger than the sum of its proper divisors (46677157).

1312718843 is an equidigital number, since it uses as much as digits as its factorization.

1312718843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47061.

The product of its digits is 32256, while the sum is 38.

The square root of 1312718843 is about 36231.4620599280. The cubic root of 1312718843 is about 1094.9406341049.

The spelling of 1312718843 in words is "one billion, three hundred twelve million, seven hundred eighteen thousand, eight hundred forty-three".