522311125321 has 2 divisors, whose sum is σ = 522311125322. Its totient is φ = 522311125320.

The previous prime is 522311125319. The next prime is 522311125327. The reversal of 522311125321 is 123521113225.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 521877652921 + 433472400 = 722411^2 + 20820^2 .

It is a cyclic number.

It is not a de Polignac number, because 522311125321 - 2¹ = 522311125319 is a prime.

Together with 522311125319, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 522311125321.

It is not a weakly prime, because it can be changed into another prime (522311125327) 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, 261155562660 + 261155562661.

It is an arithmetic number, because the mean of its divisors is an integer number (261155562661).

Almost surely, 2^522311125321 is an apocalyptic number.

It is an amenable number.

522311125321 is a deficient number, since it is larger than the sum of its proper divisors (1).

522311125321 is an equidigital number, since it uses as much as digits as its factorization.

522311125321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3600, while the sum is 28.

Adding to 522311125321 its reverse (123521113225), we get a palindrome (645832238546).

The spelling of 522311125321 in words is "five hundred twenty-two billion, three hundred eleven million, one hundred twenty-five thousand, three hundred twenty-one".