12039615903 has 32 divisors (see below), whose sum is σ = 19534464000. Its totient is φ = 6580646688.

The previous prime is 12039615893. The next prime is 12039615923. The reversal of 12039615903 is 30951693021.

It is not a de Polignac number, because 12039615903 - 2¹⁸ = 12039353759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12039615923) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 230688 + ... + 278021.

It is an arithmetic number, because the mean of its divisors is an integer number (610452000).

Almost surely, 2^12039615903 is an apocalyptic number.

12039615903 is a deficient number, since it is larger than the sum of its proper divisors (7494848097).

12039615903 is an equidigital number, since it uses as much as digits as its factorization.

12039615903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508756 (or 508742 counting only the distinct ones).

The product of its (nonzero) digits is 43740, while the sum is 39.

The spelling of 12039615903 in words is "twelve billion, thirty-nine million, six hundred fifteen thousand, nine hundred three".