2112340111 has 4 divisors (see below), whose sum is σ = 2414102992. Its totient is φ = 1810577232.

The previous prime is 2112340091. The next prime is 2112340133. The reversal of 2112340111 is 1110432112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2112340111 - 2¹⁵ = 2112307343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112340141) 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 3 ways as a sum of consecutive naturals, for example, 150881430 + ... + 150881443.

It is an arithmetic number, because the mean of its divisors is an integer number (603525748).

Almost surely, 2^2112340111 is an apocalyptic number.

2112340111 is a deficient number, since it is larger than the sum of its proper divisors (301762881).

2112340111 is an equidigital number, since it uses as much as digits as its factorization.

2112340111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301762880.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 2112340111 is about 45960.2013811950. The cubic root of 2112340111 is about 1283.0825993692.

Adding to 2112340111 its reverse (1110432112), we get a palindrome (3222772223).

The spelling of 2112340111 in words is "two billion, one hundred twelve million, three hundred forty thousand, one hundred eleven".