12305384136 has 32 divisors (see below), whose sum is σ = 34181623200. Its totient is φ = 4101794640.

The previous prime is 12305384129. The next prime is 12305384167. The reversal of 12305384136 is 63148350321.

12305384136 is a `hidden beast` number, since 1 + 230 + 5 + 3 + 8 + 413 + 6 = 666.

12305384136 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 12305384136.

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 7 ways as a sum of consecutive naturals, for example, 28484470 + ... + 28484901.

It is an arithmetic number, because the mean of its divisors is an integer number (1068175725).

Almost surely, 2^12305384136 is an apocalyptic number.

It is an amenable number.

12305384136 is an abundant number, since it is smaller than the sum of its proper divisors (21876239064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12305384136 is a wasteful number, since it uses less digits than its factorization.

12305384136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56969386 (or 56969376 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 12305384136 in words is "twelve billion, three hundred five million, three hundred eighty-four thousand, one hundred thirty-six".