2020112111 has 4 divisors (see below), whose sum is σ = 2021961432. Its totient is φ = 2018262792.

The previous prime is 2020112099. The next prime is 2020112113. The reversal of 2020112111 is 1112110202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2020112111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2020112092 and 2020112101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020112113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 923021 + ... + 925206.

It is an arithmetic number, because the mean of its divisors is an integer number (505490358).

Almost surely, 2^2020112111 is an apocalyptic number.

2020112111 is a deficient number, since it is larger than the sum of its proper divisors (1849321).

2020112111 is a wasteful number, since it uses less digits than its factorization.

2020112111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1849320.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 2020112111 is about 44945.6573096890. The cubic root of 2020112111 is about 1264.1302506162.

Adding to 2020112111 its reverse (1112110202), we get a palindrome (3132222313).

The spelling of 2020112111 in words is "two billion, twenty million, one hundred twelve thousand, one hundred eleven".