20110020000120 has 128 divisors (see below), whose sum is σ = 68459642726400. Its totient is φ = 5248572582528.

The previous prime is 20110020000113. The next prime is 20110020000209. The reversal of 20110020000120 is 2100002001102.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 198038484 + ... + 198140003.

It is an arithmetic number, because the mean of its divisors is an integer number (534840958800).

Almost surely, 2^{20110020000120} is an apocalyptic number.

20110020000120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20110020000120 is an abundant number, since it is smaller than the sum of its proper divisors (48349622726280).

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

20110020000120 is a wasteful number, since it uses less digits than its factorization.

20110020000120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396178554 (or 396178544 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 20110020000120 its reverse (2100002001102), we get a palindrome (22210022001222).

The spelling of 20110020000120 in words is "twenty trillion, one hundred ten billion, twenty million, one hundred twenty", and thus it is an aban number.