320321404443 has 8 divisors (see below), whose sum is σ = 427099045968. Its totient is φ = 213545682944.

The previous prime is 320321404423. The next prime is 320321404451. The reversal of 320321404443 is 344404123023.

It is a happy number.

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 320321404443 - 2⁶ = 320321404379 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 320321404443.

It is not an unprimeable number, because it can be changed into a prime (320321404423) 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 7 ways as a sum of consecutive naturals, for example, 30630 + ... + 800987.

It is an arithmetic number, because the mean of its divisors is an integer number (53387380746).

Almost surely, 2^320321404443 is an apocalyptic number.

320321404443 is a deficient number, since it is larger than the sum of its proper divisors (106777641525).

320321404443 is a wasteful number, since it uses less digits than its factorization.

320321404443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960013.

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 320321404443 its reverse (344404123023), we get a palindrome (664725527466).

The spelling of 320321404443 in words is "three hundred twenty billion, three hundred twenty-one million, four hundred four thousand, four hundred forty-three".