211113211113 has 64 divisors (see below), whose sum is σ = 361339031040. Its totient is φ = 119322720000.

The previous prime is 211113211109. The next prime is 211113211189. The reversal of 211113211113 is 311112311112.

It is not a de Polignac number, because 211113211113 - 2² = 211113211109 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (211113211613) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 21317463 + ... + 21327363.

It is an arithmetic number, because the mean of its divisors is an integer number (5645922360).

Almost surely, 2^211113211113 is an apocalyptic number.

It is an amenable number.

211113211113 is a deficient number, since it is larger than the sum of its proper divisors (150225819927).

211113211113 is a wasteful number, since it uses less digits than its factorization.

211113211113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11135 (or 11129 counting only the distinct ones).

The product of its digits is 36, while the sum is 18.

Adding to 211113211113 its reverse (311112311112), we get a palindrome (522225522225).

Subtracting 211113211113 from its reverse (311112311112), we obtain a palindrome (99999099999).

The spelling of 211113211113 in words is "two hundred eleven billion, one hundred thirteen million, two hundred eleven thousand, one hundred thirteen".