12129308995 has 12 divisors (see below), whose sum is σ = 14667230880. Its totient is φ = 9629306960.

The previous prime is 12129308993. The next prime is 12129309029. The reversal of 12129308995 is 59980392121.

12129308995 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12129308995 - 2¹ = 12129308993 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12129308993) 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 11 ways as a sum of consecutive naturals, for example, 15126 + ... + 156484.

It is an arithmetic number, because the mean of its divisors is an integer number (1222269240).

Almost surely, 2^12129308995 is an apocalyptic number.

12129308995 is a deficient number, since it is larger than the sum of its proper divisors (2537921885).

12129308995 is an equidigital number, since it uses as much as digits as its factorization.

12129308995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141626 (or 141495 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 49.

The spelling of 12129308995 in words is "twelve billion, one hundred twenty-nine million, three hundred eight thousand, nine hundred ninety-five".