1322023999 has 4 divisors (see below), whose sum is σ = 1338758560. Its totient is φ = 1305289440.

The previous prime is 1322023993. The next prime is 1322024017. The reversal of 1322023999 is 9993202231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9993202231 = 59 ⋅169376309.

It is a cyclic number.

It is not a de Polignac number, because 1322023999 - 2²⁹ = 785153087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322023993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8367162 + ... + 8367319.

It is an arithmetic number, because the mean of its divisors is an integer number (334689640).

Almost surely, 2^1322023999 is an apocalyptic number.

1322023999 is a deficient number, since it is larger than the sum of its proper divisors (16734561).

1322023999 is an equidigital number, since it uses as much as digits as its factorization.

1322023999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16734560.

The product of its (nonzero) digits is 52488, while the sum is 40.

The square root of 1322023999 is about 36359.6479493408. The cubic root of 1322023999 is about 1097.5216930037.

The spelling of 1322023999 in words is "one billion, three hundred twenty-two million, twenty-three thousand, nine hundred ninety-nine".