320442430069 has 2 divisors, whose sum is σ = 320442430070. Its totient is φ = 320442430068.

The previous prime is 320442430039. The next prime is 320442430081. The reversal of 320442430069 is 960034244023.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 217751023044 + 102691407025 = 466638^2 + 320455^2 .

It is a cyclic number.

It is not a de Polignac number, because 320442430069 - 2⁵ = 320442430037 is a prime.

It is a super-2 number, since 2×320442430069² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320442430039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160221215034 + 160221215035.

It is an arithmetic number, because the mean of its divisors is an integer number (160221215035).

Almost surely, 2^320442430069 is an apocalyptic number.

It is an amenable number.

320442430069 is a deficient number, since it is larger than the sum of its proper divisors (1).

320442430069 is an equidigital number, since it uses as much as digits as its factorization.

320442430069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 37.

The spelling of 320442430069 in words is "three hundred twenty billion, four hundred forty-two million, four hundred thirty thousand, sixty-nine".