211230234 has 32 divisors (see below), whose sum is σ = 471377280. Its totient is φ = 70113600.

The previous prime is 211230221. The next prime is 211230247. The reversal of 211230234 is 432032112.

211230234 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (211230221) and next prime (211230247).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4899 + ... + 21129.

It is an arithmetic number, because the mean of its divisors is an integer number (14730540).

Almost surely, 2^211230234 is an apocalyptic number.

211230234 is an abundant number, since it is smaller than the sum of its proper divisors (260147046).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211230234 is a wasteful number, since it uses less digits than its factorization.

211230234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16483 (or 16477 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 211230234 is about 14533.7618667708. The cubic root of 211230234 is about 595.5506368377.

Adding to 211230234 its reverse (432032112), we get a palindrome (643262346).

The spelling of 211230234 in words is "two hundred eleven million, two hundred thirty thousand, two hundred thirty-four".