311441034134221 has 2 divisors, whose sum is σ = 311441034134222. Its totient is φ = 311441034134220.

The previous prime is 311441034134207. The next prime is 311441034134249. The reversal of 311441034134221 is 122431430144113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 299813172832996 + 11627861301225 = 17315114^2 + 3409965^2 .

It is a cyclic number.

It is not a de Polignac number, because 311441034134221 - 2⁵ = 311441034134189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311441034134621) by changing a digit.

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 as a sum of consecutive naturals, namely, 155720517067110 + 155720517067111.

It is an arithmetic number, because the mean of its divisors is an integer number (155720517067111).

Almost surely, 2^{311441034134221} is an apocalyptic number.

It is an amenable number.

311441034134221 is a deficient number, since it is larger than the sum of its proper divisors (1).

311441034134221 is an equidigital number, since it uses as much as digits as its factorization.

311441034134221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 34.

Adding to 311441034134221 its reverse (122431430144113), we get a palindrome (433872464278334).

The spelling of 311441034134221 in words is "three hundred eleven trillion, four hundred forty-one billion, thirty-four million, one hundred thirty-four thousand, two hundred twenty-one".