112340021 has 4 divisors (see below), whose sum is σ = 112390944. Its totient is φ = 112289100.

The previous prime is 112340017. The next prime is 112340023. The reversal of 112340021 is 120043211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 120043211 = 3881 ⋅30931.

It is a cyclic number.

It is not a de Polignac number, because 112340021 - 2² = 112340017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112339978 and 112340005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112340023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21995 + ... + 26616.

It is an arithmetic number, because the mean of its divisors is an integer number (28097736).

Almost surely, 2^112340021 is an apocalyptic number.

It is an amenable number.

112340021 is a deficient number, since it is larger than the sum of its proper divisors (50923).

112340021 is an equidigital number, since it uses as much as digits as its factorization.

112340021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50922.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 112340021 is about 10599.0575524430. The cubic root of 112340021 is about 482.5157570449.

Adding to 112340021 its reverse (120043211), we get a palindrome (232383232).

The spelling of 112340021 in words is "one hundred twelve million, three hundred forty thousand, twenty-one".