12255503129 has 16 divisors (see below), whose sum is σ = 12532734720. Its totient is φ = 11981748480.

The previous prime is 12255503123. The next prime is 12255503137. The reversal of 12255503129 is 92130555221.

12255503129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12255503129 - 2¹² = 12255499033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12255503123) 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 in 15 ways as a sum of consecutive naturals, for example, 6135959 + ... + 6137955.

It is an arithmetic number, because the mean of its divisors is an integer number (783295920).

Almost surely, 2^12255503129 is an apocalyptic number.

It is an amenable number.

12255503129 is a deficient number, since it is larger than the sum of its proper divisors (277231591).

12255503129 is a wasteful number, since it uses less digits than its factorization.

12255503129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2800.

The product of its (nonzero) digits is 27000, while the sum is 35.

The spelling of 12255503129 in words is "twelve billion, two hundred fifty-five million, five hundred three thousand, one hundred twenty-nine".