320321433 has 8 divisors (see below), whose sum is σ = 427303296. Its totient is φ = 213443600.

The previous prime is 320321389. The next prime is 320321447. The reversal of 320321433 is 334123023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 320321433 - 2⁶ = 320321369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (320321333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18513 + ... + 31358.

It is an arithmetic number, because the mean of its divisors is an integer number (53412912).

Almost surely, 2^320321433 is an apocalyptic number.

It is an amenable number.

320321433 is a deficient number, since it is larger than the sum of its proper divisors (106981863).

320321433 is a wasteful number, since it uses less digits than its factorization.

320321433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52015.

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 320321433 is about 17897.5258904688. The cubic root of 320321433 is about 684.2193198233.

Adding to 320321433 its reverse (334123023), we get a palindrome (654444456).

The spelling of 320321433 in words is "three hundred twenty million, three hundred twenty-one thousand, four hundred thirty-three".