211434230 has 32 divisors (see below), whose sum is σ = 435456000. Its totient is φ = 72407520.

The previous prime is 211434227. The next prime is 211434233. The reversal of 211434230 is 32434112.

It is an interprime number because it is at equal distance from previous prime (211434227) and next prime (211434233).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211434233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104771 + ... + 106769.

It is an arithmetic number, because the mean of its divisors is an integer number (13608000).

Almost surely, 2^211434230 is an apocalyptic number.

211434230 is an abundant number, since it is smaller than the sum of its proper divisors (224021770).

211434230 is a wasteful number, since it uses less digits than its factorization.

211434230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3524.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 211434230 is about 14540.7781772503. The cubic root of 211434230 is about 595.7422932066.

Adding to 211434230 its reverse (32434112), we get a palindrome (243868342).

The spelling of 211434230 in words is "two hundred eleven million, four hundred thirty-four thousand, two hundred thirty".