211144020233 has 2 divisors, whose sum is σ = 211144020234. Its totient is φ = 211144020232.

The previous prime is 211144020209. The next prime is 211144020271. The reversal of 211144020233 is 332020441112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 171352946704 + 39791073529 = 413948^2 + 199477^2 .

It is a cyclic number.

It is not a de Polignac number, because 211144020233 - 2¹⁴ = 211144003849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211144020199 and 211144020208.

It is not a weakly prime, because it can be changed into another prime (211144020203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105572010116 + 105572010117.

It is an arithmetic number, because the mean of its divisors is an integer number (105572010117).

Almost surely, 2^211144020233 is an apocalyptic number.

It is an amenable number.

211144020233 is a deficient number, since it is larger than the sum of its proper divisors (1).

211144020233 is an equidigital number, since it uses as much as digits as its factorization.

211144020233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 211144020233 its reverse (332020441112), we get a palindrome (543164461345).

The spelling of 211144020233 in words is "two hundred eleven billion, one hundred forty-four million, twenty thousand, two hundred thirty-three".