12103685585 has 12 divisors (see below), whose sum is σ = 15429059868. Its totient is φ = 9113362176.

The previous prime is 12103685557. The next prime is 12103685593. The reversal of 12103685585 is 58558630121.

It can be written as a sum of positive squares in 6 ways, for example, as 133356304 + 11970329281 = 11548^2 + 109409^2 .

It is not a de Polignac number, because 12103685585 - 2⁶ = 12103685521 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 (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4186682 + ... + 4189571.

It is an arithmetic number, because the mean of its divisors is an integer number (1285754989).

Almost surely, 2^12103685585 is an apocalyptic number.

It is an amenable number.

12103685585 is a deficient number, since it is larger than the sum of its proper divisors (3325374283).

12103685585 is an equidigital number, since it uses as much as digits as its factorization.

12103685585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8376292 (or 8376275 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 44.

The spelling of 12103685585 in words is "twelve billion, one hundred three million, six hundred eighty-five thousand, five hundred eighty-five".