324321131021 has 2 divisors, whose sum is σ = 324321131022. Its totient is φ = 324321131020.

The previous prime is 324321130999. The next prime is 324321131053. The reversal of 324321131021 is 120131123423.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 323067192100 + 1253938921 = 568390^2 + 35411^2 .

It is a cyclic number.

It is not a de Polignac number, because 324321131021 - 2³⁴ = 307141261837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (324321131621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162160565510 + 162160565511.

It is an arithmetic number, because the mean of its divisors is an integer number (162160565511).

Almost surely, 2^324321131021 is an apocalyptic number.

It is an amenable number.

324321131021 is a deficient number, since it is larger than the sum of its proper divisors (1).

324321131021 is an equidigital number, since it uses as much as digits as its factorization.

324321131021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 324321131021 its reverse (120131123423), we get a palindrome (444452254444).

The spelling of 324321131021 in words is "three hundred twenty-four billion, three hundred twenty-one million, one hundred thirty-one thousand, twenty-one".