441142321 has 2 divisors, whose sum is σ = 441142322. Its totient is φ = 441142320.

The previous prime is 441142319. The next prime is 441142327. The reversal of 441142321 is 123241144.

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., 372914721 + 68227600 = 19311^2 + 8260^2 .

It is a cyclic number.

It is not a de Polignac number, because 441142321 - 2¹ = 441142319 is a prime.

Together with 441142319, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 441142292 and 441142301.

It is not a weakly prime, because it can be changed into another prime (441142327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220571160 + 220571161.

It is an arithmetic number, because the mean of its divisors is an integer number (220571161).

Almost surely, 2^441142321 is an apocalyptic number.

It is an amenable number.

441142321 is a deficient number, since it is larger than the sum of its proper divisors (1).

441142321 is an equidigital number, since it uses as much as digits as its factorization.

441142321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 768, while the sum is 22.

The square root of 441142321 is about 21003.3883218875. The cubic root of 441142321 is about 761.2481343386.

Adding to 441142321 its reverse (123241144), we get a palindrome (564383465).

The spelling of 441142321 in words is "four hundred forty-one million, one hundred forty-two thousand, three hundred twenty-one".