2112140231 has 8 divisors (see below), whose sum is σ = 2239779024. Its totient is φ = 1984878720.

The previous prime is 2112140183. The next prime is 2112140243. The reversal of 2112140231 is 1320412112.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2112140231 is a prime.

It is a super-2 number, since 2×2112140231² = 8922272710817466722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112140131) 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, 82745 + ... + 105218.

It is an arithmetic number, because the mean of its divisors is an integer number (279972378).

Almost surely, 2^2112140231 is an apocalyptic number.

2112140231 is a deficient number, since it is larger than the sum of its proper divisors (127638793).

2112140231 is a wasteful number, since it uses less digits than its factorization.

2112140231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188641.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 2112140231 is about 45958.0268397154. The cubic root of 2112140231 is about 1283.0421275660.

Adding to 2112140231 its reverse (1320412112), we get a palindrome (3432552343).

The spelling of 2112140231 in words is "two billion, one hundred twelve million, one hundred forty thousand, two hundred thirty-one".