112339821 has 16 divisors (see below), whose sum is σ = 165708288. Its totient is φ = 67124400.

The previous prime is 112339813. The next prime is 112339847. The reversal of 112339821 is 128933211.

It is not a de Polignac number, because 112339821 - 2³ = 112339813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112339811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21631 + ... + 26316.

It is an arithmetic number, because the mean of its divisors is an integer number (10356768).

Almost surely, 2^112339821 is an apocalyptic number.

112339821 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

112339821 is a deficient number, since it is larger than the sum of its proper divisors (53368467).

112339821 is a wasteful number, since it uses less digits than its factorization.

112339821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48032.

The product of its digits is 2592, while the sum is 30.

The square root of 112339821 is about 10599.0481176377. The cubic root of 112339821 is about 482.5154707023.

It can be divided in two parts, 112 and 339821, that added together give a palindrome (339933).

The spelling of 112339821 in words is "one hundred twelve million, three hundred thirty-nine thousand, eight hundred twenty-one".