2113043205 has 64 divisors (see below), whose sum is σ = 4172087808. Its totient is φ = 889297920.

The previous prime is 2113043197. The next prime is 2113043213. The reversal of 2113043205 is 5023403112.

It is an interprime number because it is at equal distance from previous prime (2113043197) and next prime (2113043213).

It is not a de Polignac number, because 2113043205 - 2³ = 2113043197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 572827 + ... + 576503.

It is an arithmetic number, because the mean of its divisors is an integer number (65188872).

Almost surely, 2^2113043205 is an apocalyptic number.

It is an amenable number.

2113043205 is a deficient number, since it is larger than the sum of its proper divisors (2059044603).

2113043205 is a wasteful number, since it uses less digits than its factorization.

2113043205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4126.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 2113043205 is about 45967.8496886683. The cubic root of 2113043205 is about 1283.2249419146.

Adding to 2113043205 its reverse (5023403112), we get a palindrome (7136446317).

The spelling of 2113043205 in words is "two billion, one hundred thirteen million, forty-three thousand, two hundred five".