320101203120 has 80 divisors (see below), whose sum is σ = 992411481600. Its totient is φ = 85351912192.

The previous prime is 320101203101. The next prime is 320101203131. The reversal of 320101203120 is 21302101023.

It is a tau number, because it is divible by the number of its divisors (80).

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

It is a self number, because there is not a number n which added to its sum of digits gives 320101203120.

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 15 ways as a sum of consecutive naturals, for example, 2600731 + ... + 2721029.

It is an arithmetic number, because the mean of its divisors is an integer number (12405143520).

Almost surely, 2^320101203120 is an apocalyptic number.

320101203120 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

320101203120 is an abundant number, since it is smaller than the sum of its proper divisors (672310278480).

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

320101203120 is a wasteful number, since it uses less digits than its factorization.

320101203120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131402 (or 131396 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 320101203120 its reverse (21302101023), we get a palindrome (341403304143).

The spelling of 320101203120 in words is "three hundred twenty billion, one hundred one million, two hundred three thousand, one hundred twenty".