112123405 has 4 divisors (see below), whose sum is σ = 134548092. Its totient is φ = 89698720.

The previous prime is 112123393. The next prime is 112123409. The reversal of 112123405 is 504321211.

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 79530724 + 32592681 = 8918^2 + 5709^2 .

It is not a de Polignac number, because 112123405 - 2⁹ = 112122893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112123409) 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, 11212336 + ... + 11212345.

It is an arithmetic number, because the mean of its divisors is an integer number (33637023).

Almost surely, 2^112123405 is an apocalyptic number.

It is an amenable number.

112123405 is a deficient number, since it is larger than the sum of its proper divisors (22424687).

112123405 is an equidigital number, since it uses as much as digits as its factorization.

112123405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22424686.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 112123405 is about 10588.8339773556. The cubic root of 112123405 is about 482.2054257137.

Adding to 112123405 its reverse (504321211), we get a palindrome (616444616).

The spelling of 112123405 in words is "one hundred twelve million, one hundred twenty-three thousand, four hundred five".