2112305311 has 4 divisors (see below), whose sum is σ = 2180444224. Its totient is φ = 2044166400.

The previous prime is 2112305287. The next prime is 2112305317. The reversal of 2112305311 is 1135032112.

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 2112305311 - 2¹³ = 2112297119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112305317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34069410 + ... + 34069471.

It is an arithmetic number, because the mean of its divisors is an integer number (545111056).

Almost surely, 2^2112305311 is an apocalyptic number.

2112305311 is a deficient number, since it is larger than the sum of its proper divisors (68138913).

2112305311 is an equidigital number, since it uses as much as digits as its factorization.

2112305311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68138912.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 2112305311 is about 45959.8227912162. The cubic root of 2112305311 is about 1283.0755532312.

Adding to 2112305311 its reverse (1135032112), we get a palindrome (3247337423).

The spelling of 2112305311 in words is "two billion, one hundred twelve million, three hundred five thousand, three hundred eleven".