2112543141 has 16 divisors (see below), whose sum is σ = 2852720640. Its totient is φ = 1390388720.

The previous prime is 2112543137. The next prime is 2112543179. The reversal of 2112543141 is 1413452112.

It is a cyclic number.

It is not a de Polignac number, because 2112543141 - 2² = 2112543137 is a prime.

It is a super-2 number, since 2×2112543141² = 8925677045172291762, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112543841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 523630 + ... + 527648.

It is an arithmetic number, because the mean of its divisors is an integer number (178295040).

Almost surely, 2^2112543141 is an apocalyptic number.

It is an amenable number.

2112543141 is a deficient number, since it is larger than the sum of its proper divisors (740177499).

2112543141 is a wasteful number, since it uses less digits than its factorization.

2112543141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6216.

The product of its digits is 960, while the sum is 24.

The square root of 2112543141 is about 45962.4100869395. The cubic root of 2112543141 is about 1283.1237063723.

Adding to 2112543141 its reverse (1413452112), we get a palindrome (3525995253).

The spelling of 2112543141 in words is "two billion, one hundred twelve million, five hundred forty-three thousand, one hundred forty-one".