320120302003320 has 256 divisors, whose sum is σ = 1195263361152000. Its totient is φ = 66782968344576.

The previous prime is 320120302003261. The next prime is 320120302003321. The reversal of 320120302003320 is 23300203021023.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320120302003321) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 163719390 + ... + 165663149.

It is an arithmetic number, because the mean of its divisors is an integer number (4668997504500).

Almost surely, 2^{320120302003320} is an apocalyptic number.

320120302003320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

320120302003320 is an abundant number, since it is smaller than the sum of its proper divisors (875143059148680).

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

320120302003320 is a wasteful number, since it uses less digits than its factorization.

320120302003320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329382662 (or 329382658 counting only the distinct ones).

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

Adding to 320120302003320 its reverse (23300203021023), we get a palindrome (343420505024343).

The spelling of 320120302003320 in words is "three hundred twenty trillion, one hundred twenty billion, three hundred two million, three thousand, three hundred twenty".