211134424 has 32 divisors (see below), whose sum is σ = 419962320. Its totient is φ = 99168256.

The previous prime is 211134421. The next prime is 211134431. The reversal of 211134424 is 424431112.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 211134395 and 211134404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211134421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91752 + ... + 94024.

Almost surely, 2^211134424 is an apocalyptic number.

It is an amenable number.

211134424 is a deficient number, since it is larger than the sum of its proper divisors (208827896).

211134424 is a wasteful number, since it uses less digits than its factorization.

211134424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2979 (or 2975 counting only the distinct ones).

The product of its digits is 768, while the sum is 22.

The square root of 211134424 is about 14530.4653745157. The cubic root of 211134424 is about 595.4605797553.

Adding to 211134424 its reverse (424431112), we get a palindrome (635565536).

The spelling of 211134424 in words is "two hundred eleven million, one hundred thirty-four thousand, four hundred twenty-four".