43112002140 has 120 divisors (see below), whose sum is σ = 135435706560. Its totient is φ = 11480234112.

The previous prime is 43112002121. The next prime is 43112002151. The reversal of 43112002140 is 4120021134.

43112002140 is a `hidden beast` number, since 431 + 1 + 20 + 0 + 214 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1146274 + ... + 1183286.

It is an arithmetic number, because the mean of its divisors is an integer number (1128630888).

Almost surely, 2^43112002140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43112002140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67717853280).

43112002140 is an abundant number, since it is smaller than the sum of its proper divisors (92323704420).

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

43112002140 is a wasteful number, since it uses less digits than its factorization.

43112002140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37753 (or 37742 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 43112002140 its reverse (4120021134), we get a palindrome (47232023274).

The spelling of 43112002140 in words is "forty-three billion, one hundred twelve million, two thousand, one hundred forty".