12432004009 has 2 divisors, whose sum is σ = 12432004010. Its totient is φ = 12432004008.

The previous prime is 12432004003. The next prime is 12432004073. The reversal of 12432004009 is 90040023421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6955560000 + 5476444009 = 83400^2 + 74003^2 .

It is a cyclic number.

It is not a de Polignac number, because 12432004009 - 2⁵ = 12432003977 is a prime.

It is not a weakly prime, because it can be changed into another prime (12432004003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6216002004 + 6216002005.

It is an arithmetic number, because the mean of its divisors is an integer number (6216002005).

Almost surely, 2^12432004009 is an apocalyptic number.

It is an amenable number.

12432004009 is a deficient number, since it is larger than the sum of its proper divisors (1).

12432004009 is an equidigital number, since it uses as much as digits as its factorization.

12432004009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 25.

The spelling of 12432004009 in words is "twelve billion, four hundred thirty-two million, four thousand, nine".