12136424429 has 2 divisors, whose sum is σ = 12136424430. Its totient is φ = 12136424428.

The previous prime is 12136424407. The next prime is 12136424471. The reversal of 12136424429 is 92442463121.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8069428900 + 4066995529 = 89830^2 + 63773^2 .

It is a cyclic number.

It is not a de Polignac number, because 12136424429 - 2²⁰ = 12135375853 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12136424392 and 12136424401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12136424479) 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 as a sum of consecutive naturals, namely, 6068212214 + 6068212215.

It is an arithmetic number, because the mean of its divisors is an integer number (6068212215).

Almost surely, 2^12136424429 is an apocalyptic number.

It is an amenable number.

12136424429 is a deficient number, since it is larger than the sum of its proper divisors (1).

12136424429 is an equidigital number, since it uses as much as digits as its factorization.

12136424429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 38.

The spelling of 12136424429 in words is "twelve billion, one hundred thirty-six million, four hundred twenty-four thousand, four hundred twenty-nine".