320300320020 has 48 divisors (see below), whose sum is σ = 944043051840. Its totient is φ = 80917975296.

The previous prime is 320300320013. The next prime is 320300320027. The reversal of 320300320020 is 20023003023.

It is an interprime number because it is at equal distance from previous prime (320300320013) and next prime (320300320027).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320300320027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140481457 + ... + 140483736.

It is an arithmetic number, because the mean of its divisors is an integer number (19667563580).

Almost surely, 2^320300320020 is an apocalyptic number.

320300320020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

320300320020 is an abundant number, since it is smaller than the sum of its proper divisors (623742731820).

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

320300320020 is a wasteful number, since it uses less digits than its factorization.

320300320020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280965224 (or 280965222 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 15.

Adding to 320300320020 its reverse (20023003023), we get a palindrome (340323323043).

The spelling of 320300320020 in words is "three hundred twenty billion, three hundred million, three hundred twenty thousand, twenty".