11518138134017 has 2 divisors, whose sum is σ = 11518138134018. Its totient is φ = 11518138134016.

The previous prime is 11518138134001. The next prime is 11518138134047. The reversal of 11518138134017 is 71043183181511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5778874637041 + 5739263496976 = 2403929^2 + 2395676^2 .

It is a cyclic number.

It is not a de Polignac number, because 11518138134017 - 2⁴ = 11518138134001 is a prime.

It is not a weakly prime, because it can be changed into another prime (11518138134047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5759069067008 + 5759069067009.

It is an arithmetic number, because the mean of its divisors is an integer number (5759069067009).

Almost surely, 2^{11518138134017} is an apocalyptic number.

It is an amenable number.

11518138134017 is a deficient number, since it is larger than the sum of its proper divisors (1).

11518138134017 is an equidigital number, since it uses as much as digits as its factorization.

11518138134017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 44.

The spelling of 11518138134017 in words is "eleven trillion, five hundred eighteen billion, one hundred thirty-eight million, one hundred thirty-four thousand, seventeen".