211433303242 has 64 divisors (see below), whose sum is σ = 369247507200. Its totient is φ = 88934976000.

The previous prime is 211433303219. The next prime is 211433303293. The reversal of 211433303242 is 242303334112.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 211433303242.

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 31 ways as a sum of consecutive naturals, for example, 180557317 + ... + 180558487.

It is an arithmetic number, because the mean of its divisors is an integer number (5769492300).

Almost surely, 2^211433303242 is an apocalyptic number.

211433303242 is a deficient number, since it is larger than the sum of its proper divisors (157814203958).

211433303242 is a wasteful number, since it uses less digits than its factorization.

211433303242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2287.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 211433303242 its reverse (242303334112), we get a palindrome (453736637354).

The spelling of 211433303242 in words is "two hundred eleven billion, four hundred thirty-three million, three hundred three thousand, two hundred forty-two".