211103230 has 32 divisors (see below), whose sum is σ = 411342624. Its totient is φ = 77540736.

The previous prime is 211103201. The next prime is 211103237. The reversal of 211103230 is 32301112.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 211103230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211103237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21489 + ... + 29731.

It is an arithmetic number, because the mean of its divisors is an integer number (12854457).

Almost surely, 2^211103230 is an apocalyptic number.

211103230 is a deficient number, since it is larger than the sum of its proper divisors (200239394).

211103230 is a wasteful number, since it uses less digits than its factorization.

211103230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8460.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 211103230 is about 14529.3919349710. The cubic root of 211103230 is about 595.4312529220.

Adding to 211103230 its reverse (32301112), we get a palindrome (243404342).

The spelling of 211103230 in words is "two hundred eleven million, one hundred three thousand, two hundred thirty".