423441323009 has 2 divisors, whose sum is σ = 423441323010. Its totient is φ = 423441323008.

The previous prime is 423441322991. The next prime is 423441323069. The reversal of 423441323009 is 900323144324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 284985145600 + 138456177409 = 533840^2 + 372097^2 .

It is a cyclic number.

It is not a de Polignac number, because 423441323009 - 2²⁴ = 423424545793 is a prime.

It is a super-2 number, since 2×423441323009² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 423441323009.

It is not a weakly prime, because it can be changed into another prime (423441323069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211720661504 + 211720661505.

It is an arithmetic number, because the mean of its divisors is an integer number (211720661505).

Almost surely, 2^423441323009 is an apocalyptic number.

It is an amenable number.

423441323009 is a deficient number, since it is larger than the sum of its proper divisors (1).

423441323009 is an equidigital number, since it uses as much as digits as its factorization.

423441323009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 35.

The spelling of 423441323009 in words is "four hundred twenty-three billion, four hundred forty-one million, three hundred twenty-three thousand, nine".