2020111100 has 72 divisors (see below), whose sum is σ = 5059655328. Its totient is φ = 685728000.

The previous prime is 2020111081. The next prime is 2020111111. The reversal of 2020111100 is 11110202.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 56414 + ... + 84986.

Almost surely, 2^2020111100 is an apocalyptic number.

2020111100 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 2020111100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2529827664).

2020111100 is an abundant number, since it is smaller than the sum of its proper divisors (3039544228).

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

2020111100 is a wasteful number, since it uses less digits than its factorization.

2020111100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28695 (or 28688 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 2020111100 is about 44945.6460627723. The cubic root of 2020111100 is about 1264.1300397309.

Adding to 2020111100 its reverse (11110202), we get a palindrome (2031221302).

The spelling of 2020111100 in words is "two billion, twenty million, one hundred eleven thousand, one hundred".