320023313020 has 96 divisors (see below), whose sum is σ = 701653591296. Its totient is φ = 122515737600.

The previous prime is 320023313003. The next prime is 320023313059. The reversal of 320023313020 is 20313320023.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 9903690 + ... + 9935950.

It is an arithmetic number, because the mean of its divisors is an integer number (7308891576).

Almost surely, 2^320023313020 is an apocalyptic number.

It is an amenable number.

320023313020 is an abundant number, since it is smaller than the sum of its proper divisors (381630278276).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320023313020 is a wasteful number, since it uses less digits than its factorization.

320023313020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32551 (or 32549 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 320023313020 its reverse (20313320023), we get a palindrome (340336633043).

The spelling of 320023313020 in words is "three hundred twenty billion, twenty-three million, three hundred thirteen thousand, twenty".