12120169129 has 2 divisors, whose sum is σ = 12120169130. Its totient is φ = 12120169128.

The previous prime is 12120169099. The next prime is 12120169207. The reversal of 12120169129 is 92196102121.

12120169129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11125397529 + 994771600 = 105477^2 + 31540^2 .

It is a cyclic number.

It is not a de Polignac number, because 12120169129 - 2⁷ = 12120169001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12120169094 and 12120169103.

It is not a weakly prime, because it can be changed into another prime (12120169829) 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, 6060084564 + 6060084565.

It is an arithmetic number, because the mean of its divisors is an integer number (6060084565).

Almost surely, 2^12120169129 is an apocalyptic number.

It is an amenable number.

12120169129 is a deficient number, since it is larger than the sum of its proper divisors (1).

12120169129 is an equidigital number, since it uses as much as digits as its factorization.

12120169129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 34.

The spelling of 12120169129 in words is "twelve billion, one hundred twenty million, one hundred sixty-nine thousand, one hundred twenty-nine".