13134565121065 has 8 divisors (see below), whose sum is σ = 15761740860360. Its totient is φ = 10507476953472.

The previous prime is 13134565121023. The next prime is 13134565121143. The reversal of 13134565121065 is 56012156543131.

It can be written as a sum of positive squares in 4 ways, for example, as 4773469019929 + 8361096101136 = 2184827^2 + 2891556^2 .

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 13134565121065 - 2¹¹ = 13134565119017 is a prime.

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, 21562500 + ... + 22163269.

It is an arithmetic number, because the mean of its divisors is an integer number (1970217607545).

Almost surely, 2^{13134565121065} is an apocalyptic number.

It is an amenable number.

13134565121065 is a deficient number, since it is larger than the sum of its proper divisors (2627175739295).

13134565121065 is an equidigital number, since it uses as much as digits as its factorization.

13134565121065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43785851.

The product of its (nonzero) digits is 324000, while the sum is 43.

The spelling of 13134565121065 in words is "thirteen trillion, one hundred thirty-four billion, five hundred sixty-five million, one hundred twenty-one thousand, sixty-five".