1239432323 has 2 divisors, whose sum is σ = 1239432324. Its totient is φ = 1239432322.

The previous prime is 1239432319. The next prime is 1239432353. The reversal of 1239432323 is 3232349321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1239432323 - 2² = 1239432319 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1239432323.

It is not a weakly prime, because it can be changed into another prime (1239432353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 619716161 + 619716162.

It is an arithmetic number, because the mean of its divisors is an integer number (619716162).

Almost surely, 2^1239432323 is an apocalyptic number.

1239432323 is a deficient number, since it is larger than the sum of its proper divisors (1).

1239432323 is an equidigital number, since it uses as much as digits as its factorization.

1239432323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 32.

The square root of 1239432323 is about 35205.5723288232. The cubic root of 1239432323 is about 1074.1731006833.

The spelling of 1239432323 in words is "one billion, two hundred thirty-nine million, four hundred thirty-two thousand, three hundred twenty-three".