211423430230 has 32 divisors (see below), whose sum is σ = 396451752480. Its totient is φ = 81108276480.

The previous prime is 211423430177. The next prime is 211423430293. The reversal of 211423430230 is 32034324112.

It is a junction number, because it is equal to n+sod(n) for n = 211423430195 and 211423430204.

It is a congruent 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, 4345869 + ... + 4394248.

It is an arithmetic number, because the mean of its divisors is an integer number (12389117265).

Almost surely, 2^211423430230 is an apocalyptic number.

211423430230 is a deficient number, since it is larger than the sum of its proper divisors (185028322250).

211423430230 is a wasteful number, since it uses less digits than its factorization.

211423430230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8740224.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 211423430230 its reverse (32034324112), we get a palindrome (243457754342).

The spelling of 211423430230 in words is "two hundred eleven billion, four hundred twenty-three million, four hundred thirty thousand, two hundred thirty".