211604312230 has 16 divisors (see below), whose sum is σ = 383168530080. Its totient is φ = 84134887552.

The previous prime is 211604312221. The next prime is 211604312233. The reversal of 211604312230 is 32213406112.

211604312230 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 211604312195 and 211604312204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211604312233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63352915 + ... + 63356254.

It is an arithmetic number, because the mean of its divisors is an integer number (23948033130).

Almost surely, 2^211604312230 is an apocalyptic number.

211604312230 is a deficient number, since it is larger than the sum of its proper divisors (171564217850).

211604312230 is a wasteful number, since it uses less digits than its factorization.

211604312230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126709343.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 211604312230 its reverse (32213406112), we get a palindrome (243817718342).

The spelling of 211604312230 in words is "two hundred eleven billion, six hundred four million, three hundred twelve thousand, two hundred thirty".