112112321 has 4 divisors (see below), whose sum is σ = 113372100. Its totient is φ = 110852544.

The previous prime is 112112317. The next prime is 112112339. The reversal of 112112321 is 123211211.

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 28206721 + 83905600 = 5311^2 + 9160^2 .

It is a cyclic number.

It is not a de Polignac number, because 112112321 - 2² = 112112317 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112112296 and 112112305.

It is not an unprimeable number, because it can be changed into a prime (112112311) 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, 629756 + ... + 629933.

It is an arithmetic number, because the mean of its divisors is an integer number (28343025).

Almost surely, 2^112112321 is an apocalyptic number.

It is an amenable number.

112112321 is a deficient number, since it is larger than the sum of its proper divisors (1259779).

112112321 is an equidigital number, since it uses as much as digits as its factorization.

112112321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1259778.

The product of its digits is 24, while the sum is 14.

The square root of 112112321 is about 10588.3105829023. The cubic root of 112112321 is about 482.1895356591.

Adding to 112112321 its reverse (123211211), we get a palindrome (235323532).

The spelling of 112112321 in words is "one hundred twelve million, one hundred twelve thousand, three hundred twenty-one".