13102515065 has 4 divisors (see below), whose sum is σ = 15723018084. Its totient is φ = 10482012048.

The previous prime is 13102515029. The next prime is 13102515071. The reversal of 13102515065 is 56051520131.

13102515065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1914587536 + 11187927529 = 43756^2 + 105773^2 .

It is a cyclic number.

It is not a de Polignac number, because 13102515065 - 2²⁰ = 13101466489 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1310251502 + ... + 1310251511.

It is an arithmetic number, because the mean of its divisors is an integer number (3930754521).

Almost surely, 2^13102515065 is an apocalyptic number.

It is an amenable number.

13102515065 is a deficient number, since it is larger than the sum of its proper divisors (2620503019).

13102515065 is an equidigital number, since it uses as much as digits as its factorization.

13102515065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2620503018.

The product of its (nonzero) digits is 4500, while the sum is 29.

The spelling of 13102515065 in words is "thirteen billion, one hundred two million, five hundred fifteen thousand, sixty-five".