211434140444 has 12 divisors (see below), whose sum is σ = 373284169104. Its totient is φ = 104781520704.

The previous prime is 211434140329. The next prime is 211434140471. The reversal of 211434140444 is 444041434112.

It is a self number, because there is not a number n which added to its sum of digits gives 211434140444.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233886872 + ... + 233887775.

It is an arithmetic number, because the mean of its divisors is an integer number (31107014092).

Almost surely, 2^211434140444 is an apocalyptic number.

It is an amenable number.

211434140444 is a deficient number, since it is larger than the sum of its proper divisors (161850028660).

211434140444 is a wasteful number, since it uses less digits than its factorization.

211434140444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467774764 (or 467774762 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 32.

Adding to 211434140444 its reverse (444041434112), we get a palindrome (655475574556).

The spelling of 211434140444 in words is "two hundred eleven billion, four hundred thirty-four million, one hundred forty thousand, four hundred forty-four".