2105111073 has 32 divisors (see below), whose sum is σ = 3131735040. Its totient is φ = 1248871680.

The previous prime is 2105111069. The next prime is 2105111111. The reversal of 2105111073 is 3701115012.

It is a happy number.

It is not a de Polignac number, because 2105111073 - 2² = 2105111069 is a prime.

It is a super-2 number, since 2×2105111073² = 8862985259334422658, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2105111033) 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 in 31 ways as a sum of consecutive naturals, for example, 1153840 + ... + 1155662.

It is an arithmetic number, because the mean of its divisors is an integer number (97866720).

Almost surely, 2^2105111073 is an apocalyptic number.

It is an amenable number.

2105111073 is a deficient number, since it is larger than the sum of its proper divisors (1026623967).

2105111073 is a wasteful number, since it uses less digits than its factorization.

2105111073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2889.

The product of its (nonzero) digits is 210, while the sum is 21.

The square root of 2105111073 is about 45881.4894374627. The cubic root of 2105111073 is about 1281.6172333712.

Adding to 2105111073 its reverse (3701115012), we get a palindrome (5806226085).

The spelling of 2105111073 in words is "two billion, one hundred five million, one hundred eleven thousand, seventy-three".