2105111 has 2 divisors, whose sum is σ = 2105112. Its totient is φ = 2105110.

The previous prime is 2105071. The next prime is 2105119. The reversal of 2105111 is 1115012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2105111 - 2¹⁰ = 2104087 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2105092 and 2105101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2105119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052555 + 1052556.

It is an arithmetic number, because the mean of its divisors is an integer number (1052556).

2^2105111 is an apocalyptic number.

2105111 is a deficient number, since it is larger than the sum of its proper divisors (1).

2105111 is an equidigital number, since it uses as much as digits as its factorization.

2105111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10, while the sum is 11.

The square root of 2105111 is about 1450.9000654766. The cubic root of 2105111 is about 128.1617218557.

Subtracting from 2105111 its reverse (1115012), we obtain a palindrome (990099).

The spelling of 2105111 in words is "two million, one hundred five thousand, one hundred eleven".