211434304332 has 48 divisors (see below), whose sum is σ = 505428773472. Its totient is φ = 68752427520.

The previous prime is 211434304267. The next prime is 211434304381. The reversal of 211434304332 is 233403434112.

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 211434304332.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8881998 + ... + 8905770.

It is an arithmetic number, because the mean of its divisors is an integer number (10529766114).

Almost surely, 2^211434304332 is an apocalyptic number.

It is an amenable number.

211434304332 is an abundant number, since it is smaller than the sum of its proper divisors (293994469140).

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

211434304332 is a wasteful number, since it uses less digits than its factorization.

211434304332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41898 (or 41896 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 211434304332 its reverse (233403434112), we get a palindrome (444837738444).

The spelling of 211434304332 in words is "two hundred eleven billion, four hundred thirty-four million, three hundred four thousand, three hundred thirty-two".