211203234330 has 64 divisors (see below), whose sum is σ = 557189715456. Its totient is φ = 50809928000.

The previous prime is 211203234313. The next prime is 211203234401. The reversal of 211203234330 is 33432302112.

It is a self number, because there is not a number n which added to its sum of digits gives 211203234330.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2399556 + ... + 2486015.

It is an arithmetic number, because the mean of its divisors is an integer number (8706089304).

Almost surely, 2^211203234330 is an apocalyptic number.

211203234330 is an abundant number, since it is smaller than the sum of its proper divisors (345986481126).

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

211203234330 is a wasteful number, since it uses less digits than its factorization.

211203234330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4885723.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 211203234330 its reverse (33432302112), we get a palindrome (244635536442).

It can be divided in two parts, 21120 and 3234330, that multiplied together give a square (68309049600 = 261360²).

The spelling of 211203234330 in words is "two hundred eleven billion, two hundred three million, two hundred thirty-four thousand, three hundred thirty".