2113205055 has 32 divisors (see below), whose sum is σ = 3758684160. Its totient is φ = 1006784640.

The previous prime is 2113205051. The next prime is 2113205071. The reversal of 2113205055 is 5505023112.

It is a happy number.

It is not a de Polignac number, because 2113205055 - 2² = 2113205051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113205051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 168745 + ... + 180834.

It is an arithmetic number, because the mean of its divisors is an integer number (117458880).

Almost surely, 2^2113205055 is an apocalyptic number.

2113205055 is a deficient number, since it is larger than the sum of its proper divisors (1645479105).

2113205055 is a wasteful number, since it uses less digits than its factorization.

2113205055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349631.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 2113205055 is about 45969.6101245160. The cubic root of 2113205055 is about 1283.2577042442.

Adding to 2113205055 its reverse (5505023112), we get a palindrome (7618228167).

The spelling of 2113205055 in words is "two billion, one hundred thirteen million, two hundred five thousand, fifty-five".