1323023279 has 2 divisors, whose sum is σ = 1323023280. Its totient is φ = 1323023278.

The previous prime is 1323023213. The next prime is 1323023281. The reversal of 1323023279 is 9723203231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1323023279 - 2²⁴ = 1306246063 is a prime.

Together with 1323023281, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1323023479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661511639 + 661511640.

It is an arithmetic number, because the mean of its divisors is an integer number (661511640).

Almost surely, 2^1323023279 is an apocalyptic number.

1323023279 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323023279 is an equidigital number, since it uses as much as digits as its factorization.

1323023279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 32.

The square root of 1323023279 is about 36373.3869607987. The cubic root of 1323023279 is about 1097.7981517429.

The spelling of 1323023279 in words is "one billion, three hundred twenty-three million, twenty-three thousand, two hundred seventy-nine".