2112143994 has 24 divisors (see below), whose sum is σ = 4631451552. Its totient is φ = 695565000.

The previous prime is 2112143993. The next prime is 2112144019. The reversal of 2112143994 is 4993412112.

2112143994 is a `hidden beast` number, since 211 + 2 + 1 + 439 + 9 + 4 = 666.

It is a super-2 number, since 2×2112143994² = 8922304502780544072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2112143993) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 705382 + ... + 708369.

It is an arithmetic number, because the mean of its divisors is an integer number (192977148).

Almost surely, 2^2112143994 is an apocalyptic number.

2112143994 is an abundant number, since it is smaller than the sum of its proper divisors (2519307558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2112143994 is a wasteful number, since it uses less digits than its factorization.

2112143994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1413842 (or 1413839 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 2112143994 is about 45958.0677792268. The cubic root of 2112143994 is about 1283.0428895237.

The spelling of 2112143994 in words is "two billion, one hundred twelve million, one hundred forty-three thousand, nine hundred ninety-four".