2020100111 has 2 divisors, whose sum is σ = 2020100112. Its totient is φ = 2020100110.

The previous prime is 2020100087. The next prime is 2020100113. The reversal of 2020100111 is 1110010202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2020100111 - 2²² = 2015905807 is a prime.

Together with 2020100113, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2020100113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010050055 + 1010050056.

It is an arithmetic number, because the mean of its divisors is an integer number (1010050056).

Almost surely, 2^2020100111 is an apocalyptic number.

2020100111 is a deficient number, since it is larger than the sum of its proper divisors (1).

2020100111 is an equidigital number, since it uses as much as digits as its factorization.

2020100111 is an odious number, because the sum of its binary digits is odd.

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

The square root of 2020100111 is about 44945.5238149474. The cubic root of 2020100111 is about 1264.1277475220.

Adding to 2020100111 its reverse (1110010202), we get a palindrome (3130110313).

The spelling of 2020100111 in words is "two billion, twenty million, one hundred thousand, one hundred eleven".