2112031231 has 8 divisors (see below), whose sum is σ = 2131097760. Its totient is φ = 2093048832.

The previous prime is 2112031223. The next prime is 2112031247. The reversal of 2112031231 is 1321302112.

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 2112031231 - 2³ = 2112031223 is a prime.

It is a super-2 number, since 2×2112031231² = 8921351841438750722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112031211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29955 + ... + 71563.

It is an arithmetic number, because the mean of its divisors is an integer number (266387220).

Almost surely, 2^2112031231 is an apocalyptic number.

2112031231 is a deficient number, since it is larger than the sum of its proper divisors (19066529).

2112031231 is a wasteful number, since it uses less digits than its factorization.

2112031231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42065.

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

The square root of 2112031231 is about 45956.8409597527. The cubic root of 2112031231 is about 1283.0200561152.

Adding to 2112031231 its reverse (1321302112), we get a palindrome (3433333343).

The spelling of 2112031231 in words is "two billion, one hundred twelve million, thirty-one thousand, two hundred thirty-one".