12724032124 has 12 divisors (see below), whose sum is σ = 23235189264. Its totient is φ = 6085406624.

The previous prime is 12724032121. The next prime is 12724032149. The reversal of 12724032124 is 42123042721.

It is a junction number, because it is equal to n+sod(n) for n = 12724032092 and 12724032101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12724032121) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 69152257 + ... + 69152440.

It is an arithmetic number, because the mean of its divisors is an integer number (1936265772).

Almost surely, 2^12724032124 is an apocalyptic number.

It is an amenable number.

12724032124 is a deficient number, since it is larger than the sum of its proper divisors (10511157140).

12724032124 is a wasteful number, since it uses less digits than its factorization.

12724032124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138304724 (or 138304722 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

Adding to 12724032124 its reverse (42123042721), we get a palindrome (54847074845).

The spelling of 12724032124 in words is "twelve billion, seven hundred twenty-four million, thirty-two thousand, one hundred twenty-four".