211440143062 has 4 divisors (see below), whose sum is σ = 317160214596. Its totient is φ = 105720071530.

The previous prime is 211440143029. The next prime is 211440143111. The reversal of 211440143062 is 260341044112.

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

It is a self number, because there is not a number n which added to its sum of digits gives 211440143062.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52860035764 + ... + 52860035767.

It is an arithmetic number, because the mean of its divisors is an integer number (79290053649).

Almost surely, 2^211440143062 is an apocalyptic number.

211440143062 is a deficient number, since it is larger than the sum of its proper divisors (105720071534).

211440143062 is a wasteful number, since it uses less digits than its factorization.

211440143062 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105720071533.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 211440143062 its reverse (260341044112), we get a palindrome (471781187174).

The spelling of 211440143062 in words is "two hundred eleven billion, four hundred forty million, one hundred forty-three thousand, sixty-two".