20020003320120 has 64 divisors (see below), whose sum is σ = 60068895697440. Its totient is φ = 5337877708800.

The previous prime is 20020003320113. The next prime is 20020003320137. The reversal of 20020003320120 is 2102330002002.

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 20020003320120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11526601 + ... + 13149240.

Almost surely, 2^{20020003320120} is an apocalyptic number.

20020003320120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20020003320120 is an abundant number, since it is smaller than the sum of its proper divisors (40048892377320).

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

20020003320120 is a wasteful number, since it uses less digits than its factorization.

20020003320120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24682616 (or 24682612 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 20020003320120 its reverse (2102330002002), we get a palindrome (22122333322122).

The spelling of 20020003320120 in words is "twenty trillion, twenty billion, three million, three hundred twenty thousand, one hundred twenty".