1311926115385 has 32 divisors (see below), whose sum is σ = 1715425920000. Its totient is φ = 959392740096.

The previous prime is 1311926115373. The next prime is 1311926115397. The reversal of 1311926115385 is 5835116291131.

It is an interprime number because it is at equal distance from previous prime (1311926115373) and next prime (1311926115397).

It is a cyclic number.

It is not a de Polignac number, because 1311926115385 - 2⁷ = 1311926115257 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4113784 + ... + 4421206.

It is an arithmetic number, because the mean of its divisors is an integer number (53607060000).

Almost surely, 2^{1311926115385} is an apocalyptic number.

It is an amenable number.

1311926115385 is a deficient number, since it is larger than the sum of its proper divisors (403499804615).

1311926115385 is a wasteful number, since it uses less digits than its factorization.

1311926115385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309025.

The product of its digits is 194400, while the sum is 46.

The spelling of 1311926115385 in words is "one trillion, three hundred eleven billion, nine hundred twenty-six million, one hundred fifteen thousand, three hundred eighty-five".