2020100120 has 128 divisors (see below), whose sum is σ = 4934615040. Its totient is φ = 742072320.

The previous prime is 2020100119. The next prime is 2020100153. The reversal of 2020100120 is 210010202.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a junction number, because it is equal to n+sod(n) for n = 2020100098 and 2020100107.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5504177 + ... + 5504543.

It is an arithmetic number, because the mean of its divisors is an integer number (38551680).

Almost surely, 2^2020100120 is an apocalyptic number.

2020100120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2020100120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2467307520).

2020100120 is an abundant number, since it is smaller than the sum of its proper divisors (2914514920).

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

2020100120 is a wasteful number, since it uses less digits than its factorization.

2020100120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625 (or 621 counting only the distinct ones).

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

The square root of 2020100120 is about 44945.5239150686. The cubic root of 2020100120 is about 1264.1277493993.

Adding to 2020100120 its reverse (210010202), we get a palindrome (2230110322).

The spelling of 2020100120 in words is "two billion, twenty million, one hundred thousand, one hundred twenty".