1312713815015 has 8 divisors (see below), whose sum is σ = 1575751805088. Its totient is φ = 1049840900640.

The previous prime is 1312713814999. The next prime is 1312713815033. The reversal of 1312713815015 is 5105183172131.

It is a happy number.

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

It is not a de Polignac number, because 1312713815015 - 2⁴ = 1312713814999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1312713815015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41251427 + ... + 41283236.

It is an arithmetic number, because the mean of its divisors is an integer number (196968975636).

Almost surely, 2^{1312713815015} is an apocalyptic number.

1312713815015 is a deficient number, since it is larger than the sum of its proper divisors (263037990073).

1312713815015 is an equidigital number, since it uses as much as digits as its factorization.

1312713815015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82537849.

The product of its (nonzero) digits is 25200, while the sum is 38.

Adding to 1312713815015 its reverse (5105183172131), we get a palindrome (6417896987146).

The spelling of 1312713815015 in words is "one trillion, three hundred twelve billion, seven hundred thirteen million, eight hundred fifteen thousand, fifteen".