112811 has 4 divisors (see below), whose sum is σ = 114072. Its totient is φ = 111552.

The previous prime is 112807. The next prime is 112831. The reversal of 112811 is 118211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 112811 - 2² = 112807 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 112811.

It is not an unprimeable number, because it can be changed into a prime (112831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 485 + ... + 678.

It is an arithmetic number, because the mean of its divisors is an integer number (28518).

2¹¹²⁸¹¹ is an apocalyptic number.

112811 is a deficient number, since it is larger than the sum of its proper divisors (1261).

112811 is an equidigital number, since it uses as much as digits as its factorization.

112811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260.

The product of its digits is 16, while the sum is 14.

The square root of 112811 is about 335.8734880874. The cubic root of 112811 is about 48.3189123313.

The spelling of 112811 in words is "one hundred twelve thousand, eight hundred eleven".