1232323189 has 2 divisors, whose sum is σ = 1232323190. Its totient is φ = 1232323188.

The previous prime is 1232323177. The next prime is 1232323207. The reversal of 1232323189 is 9813232321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1083068100 + 149255089 = 32910^2 + 12217^2 .

It is a cyclic number.

It is not a de Polignac number, because 1232323189 - 2⁷ = 1232323061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1232323139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616161594 + 616161595.

It is an arithmetic number, because the mean of its divisors is an integer number (616161595).

Almost surely, 2^1232323189 is an apocalyptic number.

It is an amenable number.

1232323189 is a deficient number, since it is larger than the sum of its proper divisors (1).

1232323189 is an equidigital number, since it uses as much as digits as its factorization.

1232323189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 34.

The square root of 1232323189 is about 35104.4610982707. The cubic root of 1232323189 is about 1072.1154146941.

The spelling of 1232323189 in words is "one billion, two hundred thirty-two million, three hundred twenty-three thousand, one hundred eighty-nine".