12431242693585 has 4 divisors (see below), whose sum is σ = 14917491232308. Its totient is φ = 9944994154864.

The previous prime is 12431242693577. The next prime is 12431242693633. The reversal of 12431242693585 is 58539624213421.

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 2871316694016 + 9559925999569 = 1694496^2 + 3091913^2 .

It is a cyclic number.

It is not a de Polignac number, because 12431242693585 - 2³ = 12431242693577 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1243124269354 + ... + 1243124269363.

It is an arithmetic number, because the mean of its divisors is an integer number (3729372808077).

Almost surely, 2^{12431242693585} is an apocalyptic number.

It is an amenable number.

12431242693585 is a deficient number, since it is larger than the sum of its proper divisors (2486248538723).

12431242693585 is an equidigital number, since it uses as much as digits as its factorization.

12431242693585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2486248538722.

The product of its digits is 12441600, while the sum is 55.

The spelling of 12431242693585 in words is "twelve trillion, four hundred thirty-one billion, two hundred forty-two million, six hundred ninety-three thousand, five hundred eighty-five".