112400111 has 2 divisors, whose sum is σ = 112400112. Its totient is φ = 112400110.

The previous prime is 112400081. The next prime is 112400129. The reversal of 112400111 is 111004211.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112400111 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 112400092 and 112400101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112400131) 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, 56200055 + 56200056.

It is an arithmetic number, because the mean of its divisors is an integer number (56200056).

Almost surely, 2^112400111 is an apocalyptic number.

112400111 is a deficient number, since it is larger than the sum of its proper divisors (1).

112400111 is an equidigital number, since it uses as much as digits as its factorization.

112400111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 112400111 is about 10601.8918594749. The cubic root of 112400111 is about 482.6017733001.

Adding to 112400111 its reverse (111004211), we get a palindrome (223404322).

The spelling of 112400111 in words is "one hundred twelve million, four hundred thousand, one hundred eleven".