112128811 has 2 divisors, whose sum is σ = 112128812. Its totient is φ = 112128810.

The previous prime is 112128781. The next prime is 112128827. The reversal of 112128811 is 118821211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 112128811 - 2⁹ = 112128299 is a prime.

It is not a weakly prime, because it can be changed into another prime (112128011) 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, 56064405 + 56064406.

It is an arithmetic number, because the mean of its divisors is an integer number (56064406).

Almost surely, 2^112128811 is an apocalyptic number.

112128811 is a deficient number, since it is larger than the sum of its proper divisors (1).

112128811 is an equidigital number, since it uses as much as digits as its factorization.

112128811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 256, while the sum is 25.

The square root of 112128811 is about 10589.0892431786. The cubic root of 112128811 is about 482.2131753911.

The spelling of 112128811 in words is "one hundred twelve million, one hundred twenty-eight thousand, eight hundred eleven".