211020230 has 8 divisors (see below), whose sum is σ = 379836432. Its totient is φ = 84408088.

The previous prime is 211020163. The next prime is 211020233. The reversal of 211020230 is 32020112.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211020233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10551002 + ... + 10551021.

It is an arithmetic number, because the mean of its divisors is an integer number (47479554).

Almost surely, 2^211020230 is an apocalyptic number.

211020230 is a deficient number, since it is larger than the sum of its proper divisors (168816202).

211020230 is a wasteful number, since it uses less digits than its factorization.

211020230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21102030.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 211020230 is about 14526.5353749612. The cubic root of 211020230 is about 595.3532069468.

Adding to 211020230 its reverse (32020112), we get a palindrome (243040342).

The spelling of 211020230 in words is "two hundred eleven million, twenty thousand, two hundred thirty".