2000111111 has 2 divisors, whose sum is σ = 2000111112. Its totient is φ = 2000111110.

The previous prime is 2000111107. The next prime is 2000111129. The reversal of 2000111111 is 1111110002.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2000111111 - 2² = 2000111107 is a prime.

2000111111 is a modest number, since divided by 111111 gives 2000 as remainder.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2000111101) by changing a digit.

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 as a sum of consecutive naturals, namely, 1000055555 + 1000055556.

It is an arithmetic number, because the mean of its divisors is an integer number (1000055556).

Almost surely, 2^2000111111 is an apocalyptic number.

2000111111 is a deficient number, since it is larger than the sum of its proper divisors (1).

2000111111 is an equidigital number, since it uses as much as digits as its factorization.

2000111111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2, while the sum is 8.

The square root of 2000111111 is about 44722.6017914879. The cubic root of 2000111111 is about 1259.9443813108.

Adding to 2000111111 its reverse (1111110002), we get a palindrome (3111221113).

The spelling of 2000111111 in words is "two billion, one hundred eleven thousand, one hundred eleven".