112205123 has 4 divisors (see below), whose sum is σ = 112570920. Its totient is φ = 111839328.

The previous prime is 112205099. The next prime is 112205143. The reversal of 112205123 is 321502211.

It is a happy number.

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 112205123 - 2⁸ = 112204867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112205143) 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, 182438 + ... + 183051.

It is an arithmetic number, because the mean of its divisors is an integer number (28142730).

Almost surely, 2^112205123 is an apocalyptic number.

112205123 is a deficient number, since it is larger than the sum of its proper divisors (365797).

112205123 is an equidigital number, since it uses as much as digits as its factorization.

112205123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365796.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 112205123 is about 10592.6919619141. The cubic root of 112205123 is about 482.3225445668.

Adding to 112205123 its reverse (321502211), we get a palindrome (433707334).

The spelling of 112205123 in words is "one hundred twelve million, two hundred five thousand, one hundred twenty-three".