112123111 has 2 divisors, whose sum is σ = 112123112. Its totient is φ = 112123110.

The previous prime is 112123097. The next prime is 112123117. The reversal of 112123111 is 111321211.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 112123111 - 2²¹ = 110025959 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 112123091 and 112123100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112123117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56061555 + 56061556.

It is an arithmetic number, because the mean of its divisors is an integer number (56061556).

Almost surely, 2^112123111 is an apocalyptic number.

112123111 is a deficient number, since it is larger than the sum of its proper divisors (1).

112123111 is an equidigital number, since it uses as much as digits as its factorization.

112123111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12, while the sum is 13.

The square root of 112123111 is about 10588.8200947981. The cubic root of 112123111 is about 482.2050042480.

Adding to 112123111 its reverse (111321211), we get a palindrome (223444322).

The spelling of 112123111 in words is "one hundred twelve million, one hundred twenty-three thousand, one hundred eleven".