211144123230 has 16 divisors (see below), whose sum is σ = 506745895824. Its totient is φ = 56305099520.

The previous prime is 211144123171. The next prime is 211144123243. The reversal of 211144123230 is 32321441112.

211144123230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 211144123230.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3519068691 + ... + 3519068750.

It is an arithmetic number, because the mean of its divisors is an integer number (31671618489).

Almost surely, 2^211144123230 is an apocalyptic number.

211144123230 is an abundant number, since it is smaller than the sum of its proper divisors (295601772594).

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

211144123230 is a wasteful number, since it uses less digits than its factorization.

211144123230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7038137451.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 211144123230 its reverse (32321441112), we get a palindrome (243465564342).

The spelling of 211144123230 in words is "two hundred eleven billion, one hundred forty-four million, one hundred twenty-three thousand, two hundred thirty".