504211213321 has 2 divisors, whose sum is σ = 504211213322. Its totient is φ = 504211213320.

The previous prime is 504211213309. The next prime is 504211213343. The reversal of 504211213321 is 123312112405.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 365376727296 + 138834486025 = 604464^2 + 372605^2 .

It is a cyclic number.

It is not a de Polignac number, because 504211213321 - 2¹³ = 504211205129 is a prime.

It is not a weakly prime, because it can be changed into another prime (504211213421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252105606660 + 252105606661.

It is an arithmetic number, because the mean of its divisors is an integer number (252105606661).

Almost surely, 2^504211213321 is an apocalyptic number.

It is an amenable number.

504211213321 is a deficient number, since it is larger than the sum of its proper divisors (1).

504211213321 is an equidigital number, since it uses as much as digits as its factorization.

504211213321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 504211213321 its reverse (123312112405), we get a palindrome (627523325726).

The spelling of 504211213321 in words is "five hundred four billion, two hundred eleven million, two hundred thirteen thousand, three hundred twenty-one".