320232230209 has 2 divisors, whose sum is σ = 320232230210. Its totient is φ = 320232230208.

The previous prime is 320232230207. The next prime is 320232230239. The reversal of 320232230209 is 902032232023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 190333257984 + 129898972225 = 436272^2 + 360415^2 .

It is a cyclic number.

It is not a de Polignac number, because 320232230209 - 2¹ = 320232230207 is a prime.

Together with 320232230207, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (320232230207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160116115104 + 160116115105.

It is an arithmetic number, because the mean of its divisors is an integer number (160116115105).

Almost surely, 2^320232230209 is an apocalyptic number.

It is an amenable number.

320232230209 is a deficient number, since it is larger than the sum of its proper divisors (1).

320232230209 is an equidigital number, since it uses as much as digits as its factorization.

320232230209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 28.

The spelling of 320232230209 in words is "three hundred twenty billion, two hundred thirty-two million, two hundred thirty thousand, two hundred nine".