2111112611 has 2 divisors, whose sum is σ = 2111112612. Its totient is φ = 2111112610.

The previous prime is 2111112607. The next prime is 2111112613. The reversal of 2111112611 is 1162111112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2111112611 - 2² = 2111112607 is a prime.

Together with 2111112613, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2111112611.

It is not a weakly prime, because it can be changed into another prime (2111112613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055556305 + 1055556306.

It is an arithmetic number, because the mean of its divisors is an integer number (1055556306).

Almost surely, 2^2111112611 is an apocalyptic number.

2111112611 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111112611 is an equidigital number, since it uses as much as digits as its factorization.

2111112611 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24, while the sum is 17.

The square root of 2111112611 is about 45946.8454956377. The cubic root of 2111112611 is about 1282.8340142321.

Adding to 2111112611 its reverse (1162111112), we get a palindrome (3273223723).

The spelling of 2111112611 in words is "two billion, one hundred eleven million, one hundred twelve thousand, six hundred eleven".