12124529999 has 6 divisors (see below), whose sum is σ = 12879691344. Its totient is φ = 11411322080.

The previous prime is 12124529993. The next prime is 12124530013. The reversal of 12124529999 is 99992542121.

It is a happy number.

It is not a de Polignac number, because 12124529999 - 2²⁸ = 11856094543 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12124529999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12124529993) 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 5 ways as a sum of consecutive naturals, for example, 20976407 + ... + 20976984.

It is an arithmetic number, because the mean of its divisors is an integer number (2146615224).

Almost surely, 2^12124529999 is an apocalyptic number.

12124529999 is a deficient number, since it is larger than the sum of its proper divisors (755161345).

12124529999 is an equidigital number, since it uses as much as digits as its factorization.

12124529999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41953425 (or 41953408 counting only the distinct ones).

The product of its digits is 1049760, while the sum is 53.

The spelling of 12124529999 in words is "twelve billion, one hundred twenty-four million, five hundred twenty-nine thousand, nine hundred ninety-nine".