211443412143 has 4 divisors (see below), whose sum is σ = 281924549528. Its totient is φ = 140962274760.

The previous prime is 211443412121. The next prime is 211443412171. The reversal of 211443412143 is 341214344112.

It is a happy number.

211443412143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 211443412143 - 2⁸ = 211443411887 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 211443412143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211443432143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35240568688 + ... + 35240568693.

It is an arithmetic number, because the mean of its divisors is an integer number (70481137382).

Almost surely, 2^211443412143 is an apocalyptic number.

211443412143 is a deficient number, since it is larger than the sum of its proper divisors (70481137385).

211443412143 is an equidigital number, since it uses as much as digits as its factorization.

211443412143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70481137384.

The product of its digits is 9216, while the sum is 30.

Adding to 211443412143 its reverse (341214344112), we get a palindrome (552657756255).

The spelling of 211443412143 in words is "two hundred eleven billion, four hundred forty-three million, four hundred twelve thousand, one hundred forty-three".