1311360391915 has 8 divisors (see below), whose sum is σ = 1798437108960. Its totient is φ = 899218554432.

The previous prime is 1311360391897. The next prime is 1311360391919. The reversal of 1311360391915 is 5191930631131.

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 1311360391915 - 2⁹ = 1311360391403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1311360391919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18733719850 + ... + 18733719919.

It is an arithmetic number, because the mean of its divisors is an integer number (224804638620).

Almost surely, 2^{1311360391915} is an apocalyptic number.

1311360391915 is a deficient number, since it is larger than the sum of its proper divisors (487076717045).

1311360391915 is an equidigital number, since it uses as much as digits as its factorization.

1311360391915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37467439781.

The product of its (nonzero) digits is 65610, while the sum is 43.

The spelling of 1311360391915 in words is "one trillion, three hundred eleven billion, three hundred sixty million, three hundred ninety-one thousand, nine hundred fifteen".