211044423 has 8 divisors (see below), whose sum is σ = 282561136. Its totient is φ = 140112000.

The previous prime is 211044391. The next prime is 211044433. The reversal of 211044423 is 324440112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 211044423 - 2⁵ = 211044391 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 211044423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211044433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145228 + ... + 146673.

It is an arithmetic number, because the mean of its divisors is an integer number (35320142).

Almost surely, 2^211044423 is an apocalyptic number.

211044423 is a deficient number, since it is larger than the sum of its proper divisors (71516713).

211044423 is a wasteful number, since it uses less digits than its factorization.

211044423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292145.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 211044423 is about 14527.3680685801. The cubic root of 211044423 is about 595.3759580510.

Adding to 211044423 its reverse (324440112), we get a palindrome (535484535).

The spelling of 211044423 in words is "two hundred eleven million, forty-four thousand, four hundred twenty-three".