112820242 has 4 divisors (see below), whose sum is σ = 169230366. Its totient is φ = 56410120.

The previous prime is 112820219. The next prime is 112820243. The reversal of 112820242 is 242028211.

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

It can be written as a sum of positive squares in only one way, i.e., 112550881 + 269361 = 10609^2 + 519^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (112820243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28205059 + ... + 28205062.

Almost surely, 2^112820242 is an apocalyptic number.

112820242 is a deficient number, since it is larger than the sum of its proper divisors (56410124).

112820242 is an equidigital number, since it uses as much as digits as its factorization.

112820242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56410123.

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 112820242 is about 10621.6873424141. The cubic root of 112820242 is about 483.2023179839.

Adding to 112820242 its reverse (242028211), we get a palindrome (354848453).

The spelling of 112820242 in words is "one hundred twelve million, eight hundred twenty thousand, two hundred forty-two".