1323331009 has 24 divisors (see below), whose sum is σ = 1786560192. Its totient is φ = 951837120.

The previous prime is 1323330997. The next prime is 1323331027. The reversal of 1323331009 is 9001333231.

It is not a de Polignac number, because 1323331009 - 2²⁵ = 1289776577 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 (1323331099) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37834 + ... + 63859.

It is an arithmetic number, because the mean of its divisors is an integer number (74440008).

Almost surely, 2^1323331009 is an apocalyptic number.

It is an amenable number.

1323331009 is a deficient number, since it is larger than the sum of its proper divisors (463229183).

1323331009 is a wasteful number, since it uses less digits than its factorization.

1323331009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101737 (or 101724 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 25.

The square root of 1323331009 is about 36377.6168680687. The cubic root of 1323331009 is about 1097.8832596524.

The spelling of 1323331009 in words is "one billion, three hundred twenty-three million, three hundred thirty-one thousand, nine".