2113113111 has 8 divisors (see below), whose sum is σ = 2818827264. Its totient is φ = 1408070520.

The previous prime is 2113113103. The next prime is 2113113113. The reversal of 2113113111 is 1113113112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2113113111 - 2³ = 2113113103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113113113) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 160501 + ... + 173166.

It is an arithmetic number, because the mean of its divisors is an integer number (352353408).

Almost surely, 2^2113113111 is an apocalyptic number.

2113113111 is a deficient number, since it is larger than the sum of its proper divisors (705714153).

2113113111 is a wasteful number, since it uses less digits than its factorization.

2113113111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335781.

The product of its digits is 18, while the sum is 15.

The square root of 2113113111 is about 45968.6100616497. The cubic root of 2113113111 is about 1283.2390927742.

Adding to 2113113111 its reverse (1113113112), we get a palindrome (3226226223).

Subtracting from 2113113111 its reverse (1113113112), we obtain a palindrome (999999999).

The spelling of 2113113111 in words is "two billion, one hundred thirteen million, one hundred thirteen thousand, one hundred eleven".