321253422241 has 2 divisors, whose sum is σ = 321253422242. Its totient is φ = 321253422240.

The previous prime is 321253422221. The next prime is 321253422263. The reversal of 321253422241 is 142224352123.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 239900121616 + 81353300625 = 489796^2 + 285225^2 .

It is a cyclic number.

It is not a de Polignac number, because 321253422241 - 2¹⁷ = 321253291169 is a prime.

It is a super-2 number, since 2×321253422241² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (321253422221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160626711120 + 160626711121.

It is an arithmetic number, because the mean of its divisors is an integer number (160626711121).

Almost surely, 2^321253422241 is an apocalyptic number.

It is an amenable number.

321253422241 is a deficient number, since it is larger than the sum of its proper divisors (1).

321253422241 is an equidigital number, since it uses as much as digits as its factorization.

321253422241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23040, while the sum is 31.

Adding to 321253422241 its reverse (142224352123), we get a palindrome (463477774364).

The spelling of 321253422241 in words is "three hundred twenty-one billion, two hundred fifty-three million, four hundred twenty-two thousand, two hundred forty-one".