2112312231 has 6 divisors (see below), whose sum is σ = 3051117680. Its totient is φ = 1408208148.

The previous prime is 2112312229. The next prime is 2112312247. The reversal of 2112312231 is 1322132112.

2112312231 is a `hidden beast` number, since 211 + 231 + 223 + 1 = 666.

It is not a de Polignac number, because 2112312231 - 2¹ = 2112312229 is a prime.

It is a super-2 number, since 2×2112312231² = 8923725922464394722, 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 (2112312281) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 117350671 + ... + 117350688.

Almost surely, 2^2112312231 is an apocalyptic number.

2112312231 is a deficient number, since it is larger than the sum of its proper divisors (938805449).

2112312231 is a wasteful number, since it uses less digits than its factorization.

2112312231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234701365 (or 234701362 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 2112312231 is about 45959.8980742995. The cubic root of 2112312231 is about 1283.0769543659.

Adding to 2112312231 its reverse (1322132112), we get a palindrome (3434444343).

The spelling of 2112312231 in words is "two billion, one hundred twelve million, three hundred twelve thousand, two hundred thirty-one".