12005124134 has 4 divisors (see below), whose sum is σ = 18007686204. Its totient is φ = 6002562066.

The previous prime is 12005124133. The next prime is 12005124149. The reversal of 12005124134 is 43142150021.

12005124134 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12005124133) by changing a digit.

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 as a sum of consecutive naturals, namely, 3001281032 + ... + 3001281035.

It is an arithmetic number, because the mean of its divisors is an integer number (4501921551).

Almost surely, 2^12005124134 is an apocalyptic number.

12005124134 is a deficient number, since it is larger than the sum of its proper divisors (6002562070).

12005124134 is an equidigital number, since it uses as much as digits as its factorization.

12005124134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6002562069.

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 12005124134 its reverse (43142150021), we get a palindrome (55147274155).

The spelling of 12005124134 in words is "twelve billion, five million, one hundred twenty-four thousand, one hundred thirty-four".