320133215443 has 4 divisors (see below), whose sum is σ = 320862448720. Its totient is φ = 319403982168.

The previous prime is 320133215401. The next prime is 320133215461. The reversal of 320133215443 is 344512331023.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320133215443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320133215243) 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, 364615980 + ... + 364616857.

It is an arithmetic number, because the mean of its divisors is an integer number (80215612180).

Almost surely, 2^320133215443 is an apocalyptic number.

320133215443 is a deficient number, since it is larger than the sum of its proper divisors (729233277).

320133215443 is an equidigital number, since it uses as much as digits as its factorization.

320133215443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729233276.

The product of its (nonzero) digits is 25920, while the sum is 31.

Adding to 320133215443 its reverse (344512331023), we get a palindrome (664645546466).

The spelling of 320133215443 in words is "three hundred twenty billion, one hundred thirty-three million, two hundred fifteen thousand, four hundred forty-three".