12423312029 has 2 divisors, whose sum is σ = 12423312030. Its totient is φ = 12423312028.

The previous prime is 12423311963. The next prime is 12423312043. The reversal of 12423312029 is 92021332421.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7211915929 + 5211396100 = 84923^2 + 72190^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12423312029 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12423311992 and 12423312010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12423312079) 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, 6211656014 + 6211656015.

It is an arithmetic number, because the mean of its divisors is an integer number (6211656015).

Almost surely, 2^12423312029 is an apocalyptic number.

It is an amenable number.

12423312029 is a deficient number, since it is larger than the sum of its proper divisors (1).

12423312029 is an equidigital number, since it uses as much as digits as its factorization.

12423312029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 29.

The spelling of 12423312029 in words is "twelve billion, four hundred twenty-three million, three hundred twelve thousand, twenty-nine".