43212142443 has 16 divisors (see below), whose sum is σ = 57951089280. Its totient is φ = 28640718336.

The previous prime is 43212142429. The next prime is 43212142451. The reversal of 43212142443 is 34424121234.

It is a de Polignac number, because none of the positive numbers 2^k-43212142443 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43212142443.

It is not an unprimeable number, because it can be changed into a prime (43212142403) 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, 4240971 + ... + 4251147.

It is an arithmetic number, because the mean of its divisors is an integer number (3621943080).

Almost surely, 2^43212142443 is an apocalyptic number.

43212142443 is a deficient number, since it is larger than the sum of its proper divisors (14738946837).

43212142443 is a wasteful number, since it uses less digits than its factorization.

43212142443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18266.

The product of its digits is 18432, while the sum is 30.

Adding to 43212142443 its reverse (34424121234), we get a palindrome (77636263677).

The spelling of 43212142443 in words is "forty-three billion, two hundred twelve million, one hundred forty-two thousand, four hundred forty-three".