13105325515505 has 16 divisors (see below), whose sum is σ = 15880713012864. Its totient is φ = 10381469518080.

The previous prime is 13105325515493. The next prime is 13105325515517. The reversal of 13105325515505 is 50551552350131.

It is an interprime number because it is at equal distance from previous prime (13105325515493) and next prime (13105325515517).

It is not a de Polignac number, because 13105325515505 - 2²² = 13105321321201 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 (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4511597 + ... + 6823866.

It is an arithmetic number, because the mean of its divisors is an integer number (992544563304).

Almost surely, 2^{13105325515505} is an apocalyptic number.

It is an amenable number.

13105325515505 is a deficient number, since it is larger than the sum of its proper divisors (2775387497359).

13105325515505 is a wasteful number, since it uses less digits than its factorization.

13105325515505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11337736.

The product of its (nonzero) digits is 281250, while the sum is 41.

Adding to 13105325515505 its reverse (50551552350131), we get a palindrome (63656877865636).

The spelling of 13105325515505 in words is "thirteen trillion, one hundred five billion, three hundred twenty-five million, five hundred fifteen thousand, five hundred five".