321130441 has 2 divisors, whose sum is σ = 321130442. Its totient is φ = 321130440.

The previous prime is 321130421. The next prime is 321130483. The reversal of 321130441 is 144031123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 308740041 + 12390400 = 17571^2 + 3520^2 .

It is a cyclic number.

It is not a de Polignac number, because 321130441 - 2⁹ = 321129929 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (321130421) 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, 160565220 + 160565221.

It is an arithmetic number, because the mean of its divisors is an integer number (160565221).

Almost surely, 2^321130441 is an apocalyptic number.

It is an amenable number.

321130441 is a deficient number, since it is larger than the sum of its proper divisors (1).

321130441 is an equidigital number, since it uses as much as digits as its factorization.

321130441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 321130441 is about 17920.1127507614. The cubic root of 321130441 is about 684.7948599849.

Adding to 321130441 its reverse (144031123), we get a palindrome (465161564).

The spelling of 321130441 in words is "three hundred twenty-one million, one hundred thirty thousand, four hundred forty-one".