211021300241 has 2 divisors, whose sum is σ = 211021300242. Its totient is φ = 211021300240.

The previous prime is 211021300229. The next prime is 211021300247. The reversal of 211021300241 is 142003120112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 195669099025 + 15352201216 = 442345^2 + 123904^2 .

It is a cyclic number.

It is not a de Polignac number, because 211021300241 - 2⁶ = 211021300177 is a prime.

It is not a weakly prime, because it can be changed into another prime (211021300247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105510650120 + 105510650121.

It is an arithmetic number, because the mean of its divisors is an integer number (105510650121).

Almost surely, 2^211021300241 is an apocalyptic number.

It is an amenable number.

211021300241 is a deficient number, since it is larger than the sum of its proper divisors (1).

211021300241 is an equidigital number, since it uses as much as digits as its factorization.

211021300241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 211021300241 its reverse (142003120112), we get a palindrome (353024420353).

The spelling of 211021300241 in words is "two hundred eleven billion, twenty-one million, three hundred thousand, two hundred forty-one".