1315109856239 has 4 divisors (see below), whose sum is σ = 1334738361624. Its totient is φ = 1295481350856.

The previous prime is 1315109856233. The next prime is 1315109856241. The reversal of 1315109856239 is 9326589015131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1315109856239 - 2³⁶ = 1246390379503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1315109856233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9814252592 + ... + 9814252725.

It is an arithmetic number, because the mean of its divisors is an integer number (333684590406).

Almost surely, 2^{1315109856239} is an apocalyptic number.

1315109856239 is a deficient number, since it is larger than the sum of its proper divisors (19628505385).

1315109856239 is an equidigital number, since it uses as much as digits as its factorization.

1315109856239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19628505384.

The product of its (nonzero) digits is 1749600, while the sum is 53.

The spelling of 1315109856239 in words is "one trillion, three hundred fifteen billion, one hundred nine million, eight hundred fifty-six thousand, two hundred thirty-nine".