112111777 has 4 divisors (see below), whose sum is σ = 112309380. Its totient is φ = 111914176.

The previous prime is 112111763. The next prime is 112111781. The reversal of 112111777 is 777111211.

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

It can be written as a sum of positive squares in 2 ways, for example, as 72182016 + 39929761 = 8496^2 + 6319^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112111777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112111757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97948 + ... + 99085.

It is an arithmetic number, because the mean of its divisors is an integer number (28077345).

Almost surely, 2^112111777 is an apocalyptic number.

It is an amenable number.

112111777 is a deficient number, since it is larger than the sum of its proper divisors (197603).

112111777 is an equidigital number, since it uses as much as digits as its factorization.

112111777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197602.

The product of its digits is 686, while the sum is 28.

The square root of 112111777 is about 10588.2848941649. The cubic root of 112111777 is about 482.1887557522.

Adding to 112111777 its reverse (777111211), we get a palindrome (889222988).

The spelling of 112111777 in words is "one hundred twelve million, one hundred eleven thousand, seven hundred seventy-seven".