2100111105 has 32 divisors (see below), whose sum is σ = 3444208128. Its totient is φ = 1092224000.

The previous prime is 2100111103. The next prime is 2100111109. The reversal of 2100111105 is 5011110012.

It is not a de Polignac number, because 2100111105 - 2¹ = 2100111103 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2100111103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 192805 + ... + 203405.

It is an arithmetic number, because the mean of its divisors is an integer number (107631504).

Almost surely, 2^2100111105 is an apocalyptic number.

It is an amenable number.

2100111105 is a deficient number, since it is larger than the sum of its proper divisors (1344097023).

2100111105 is a wasteful number, since it uses less digits than its factorization.

2100111105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10937.

The product of its (nonzero) digits is 10, while the sum is 12.

The square root of 2100111105 is about 45826.9691884593. The cubic root of 2100111105 is about 1280.6017485175.

Adding to 2100111105 its reverse (5011110012), we get a palindrome (7111221117).

The spelling of 2100111105 in words is "two billion, one hundred million, one hundred eleven thousand, one hundred five".