112112111 has 2 divisors, whose sum is σ = 112112112. Its totient is φ = 112112110.

The previous prime is 112112071. The next prime is 112112123. The reversal of 112112111 is 111211211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 112112111 - 2¹⁸ = 111849967 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 112112092 and 112112101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112112311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56056055 + 56056056.

It is an arithmetic number, because the mean of its divisors is an integer number (56056056).

Almost surely, 2^112112111 is an apocalyptic number.

112112111 is a deficient number, since it is larger than the sum of its proper divisors (1).

112112111 is an equidigital number, since it uses as much as digits as its factorization.

112112111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4, while the sum is 11.

The square root of 112112111 is about 10588.3006663015. The cubic root of 112112111 is about 482.1892345924.

Adding to 112112111 its reverse (111211211), we get a palindrome (223323322).

The spelling of 112112111 in words is "one hundred twelve million, one hundred twelve thousand, one hundred eleven".