211033430 has 32 divisors (see below), whose sum is σ = 395055360. Its totient is φ = 81077760.

The previous prime is 211033429. The next prime is 211033447. The reversal of 211033430 is 34330112.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 211033399 and 211033408.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39986 + ... + 44954.

It is an arithmetic number, because the mean of its divisors is an integer number (12345480).

Almost surely, 2^211033430 is an apocalyptic number.

211033430 is a deficient number, since it is larger than the sum of its proper divisors (184021930).

211033430 is a wasteful number, since it uses less digits than its factorization.

211033430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5144.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 211033430 is about 14526.9897088144. The cubic root of 211033430 is about 595.3656204461.

Adding to 211033430 its reverse (34330112), we get a palindrome (245363542).

The spelling of 211033430 in words is "two hundred eleven million, thirty-three thousand, four hundred thirty".