112124021 has 4 divisors (see below), whose sum is σ = 112183500. Its totient is φ = 112064544.

The previous prime is 112124017. The next prime is 112124029. The reversal of 112124021 is 120421211.

It is a happy number.

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 92640625 + 19483396 = 9625^2 + 4414^2 .

It is a cyclic number.

It is not a de Polignac number, because 112124021 - 2² = 112124017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112123987 and 112124005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112124029) 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, 26816 + ... + 30713.

It is an arithmetic number, because the mean of its divisors is an integer number (28045875).

Almost surely, 2^112124021 is an apocalyptic number.

It is an amenable number.

112124021 is a deficient number, since it is larger than the sum of its proper divisors (59479).

112124021 is an equidigital number, since it uses as much as digits as its factorization.

112124021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59478.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 112124021 is about 10588.8630645599. The cubic root of 112124021 is about 482.2063087824.

Adding to 112124021 its reverse (120421211), we get a palindrome (232545232).

The spelling of 112124021 in words is "one hundred twelve million, one hundred twenty-four thousand, twenty-one".