112120309 has 4 divisors (see below), whose sum is σ = 128137504. Its totient is φ = 96103116.

The previous prime is 112120297. The next prime is 112120313. The reversal of 112120309 is 903021211.

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.

It is a cyclic number.

It is not a de Polignac number, because 112120309 - 2⁵ = 112120277 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 (112120339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8008587 + ... + 8008600.

It is an arithmetic number, because the mean of its divisors is an integer number (32034376).

Almost surely, 2^112120309 is an apocalyptic number.

It is an amenable number.

112120309 is a deficient number, since it is larger than the sum of its proper divisors (16017195).

112120309 is an equidigital number, since it uses as much as digits as its factorization.

112120309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16017194.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 112120309 is about 10588.6877846124. The cubic root of 112120309 is about 482.2009873845.

The spelling of 112120309 in words is "one hundred twelve million, one hundred twenty thousand, three hundred nine".