324231440321 has 2 divisors, whose sum is σ = 324231440322. Its totient is φ = 324231440320.

The previous prime is 324231440317. The next prime is 324231440341. The reversal of 324231440321 is 123044132423.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 254862415921 + 69369024400 = 504839^2 + 263380^2 .

It is a cyclic number.

It is not a de Polignac number, because 324231440321 - 2² = 324231440317 is a prime.

It is not a weakly prime, because it can be changed into another prime (324231440311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162115720160 + 162115720161.

It is an arithmetic number, because the mean of its divisors is an integer number (162115720161).

Almost surely, 2^324231440321 is an apocalyptic number.

It is an amenable number.

324231440321 is a deficient number, since it is larger than the sum of its proper divisors (1).

324231440321 is an equidigital number, since it uses as much as digits as its factorization.

324231440321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 324231440321 its reverse (123044132423), we get a palindrome (447275572744).

The spelling of 324231440321 in words is "three hundred twenty-four billion, two hundred thirty-one million, four hundred forty thousand, three hundred twenty-one".