12012103131204 has 48 divisors (see below), whose sum is σ = 30577728142080. Its totient is φ = 3639856772640.

The previous prime is 12012103131157. The next prime is 12012103131247. The reversal of 12012103131204 is 40213130121021.

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 15 ways as a sum of consecutive naturals, for example, 596607 + ... + 4937625.

It is an arithmetic number, because the mean of its divisors is an integer number (637036002960).

Almost surely, 2^{12012103131204} is an apocalyptic number.

It is an amenable number.

12012103131204 is an abundant number, since it is smaller than the sum of its proper divisors (18565625010876).

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

12012103131204 is a wasteful number, since it uses less digits than its factorization.

12012103131204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4362000 (or 4361998 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 12012103131204 its reverse (40213130121021), we get a palindrome (52225233252225).

The spelling of 12012103131204 in words is "twelve trillion, twelve billion, one hundred three million, one hundred thirty-one thousand, two hundred four".