2112120331 has 8 divisors (see below), whose sum is σ = 2162906064. Its totient is φ = 2061739680.

The previous prime is 2112120317. The next prime is 2112120347. The reversal of 2112120331 is 1330212112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2112120331 - 2⁵ = 2112120299 is a prime.

It is a super-2 number, since 2×2112120331² = 8922104585247099122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2112120301) 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 7 ways as a sum of consecutive naturals, for example, 90705 + ... + 111586.

It is an arithmetic number, because the mean of its divisors is an integer number (270363258).

Almost surely, 2^2112120331 is an apocalyptic number.

2112120331 is a deficient number, since it is larger than the sum of its proper divisors (50785733).

2112120331 is a wasteful number, since it uses less digits than its factorization.

2112120331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202541.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2112120331 is about 45957.8103373083. The cubic root of 2112120331 is about 1283.0380980642.

Adding to 2112120331 its reverse (1330212112), we get a palindrome (3442332443).

The spelling of 2112120331 in words is "two billion, one hundred twelve million, one hundred twenty thousand, three hundred thirty-one".