112120321 has 4 divisors (see below), whose sum is σ = 118715652. Its totient is φ = 105524992.

The previous prime is 112120313. The next prime is 112120339. The reversal of 112120321 is 123021211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 123021211 = 2309 ⋅53279.

It can be written as a sum of positive squares in 2 ways, for example, as 77440000 + 34680321 = 8800^2 + 5889^2 .

It is a cyclic number.

It is not a de Polignac number, because 112120321 - 2³ = 112120313 is a prime.

It is a super-2 number, since 2×112120321² = 25141932762286082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112120621) 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, 3297640 + ... + 3297673.

It is an arithmetic number, because the mean of its divisors is an integer number (29678913).

Almost surely, 2^112120321 is an apocalyptic number.

It is an amenable number.

112120321 is a deficient number, since it is larger than the sum of its proper divisors (6595331).

112120321 is an equidigital number, since it uses as much as digits as its factorization.

112120321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6595330.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 112120321 is about 10588.6883512548. The cubic root of 112120321 is about 482.2010045875.

Adding to 112120321 its reverse (123021211), we get a palindrome (235141532).

The spelling of 112120321 in words is "one hundred twelve million, one hundred twenty thousand, three hundred twenty-one".