211441330481 has 2 divisors, whose sum is σ = 211441330482. Its totient is φ = 211441330480.

The previous prime is 211441330433. The next prime is 211441330483. The reversal of 211441330481 is 184033144112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 211246867456 + 194463025 = 459616^2 + 13945^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211441330481 is a prime.

It is a super-2 number, since 2×211441330481² (a number of 23 digits) contains 22 as substring.

Together with 211441330483, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (211441330483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105720665240 + 105720665241.

It is an arithmetic number, because the mean of its divisors is an integer number (105720665241).

Almost surely, 2^211441330481 is an apocalyptic number.

It is an amenable number.

211441330481 is a deficient number, since it is larger than the sum of its proper divisors (1).

211441330481 is an equidigital number, since it uses as much as digits as its factorization.

211441330481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 32.

Adding to 211441330481 its reverse (184033144112), we get a palindrome (395474474593).

The spelling of 211441330481 in words is "two hundred eleven billion, four hundred forty-one million, three hundred thirty thousand, four hundred eighty-one".