321263441 has 2 divisors, whose sum is σ = 321263442. Its totient is φ = 321263440.

The previous prime is 321263353. The next prime is 321263461. The reversal of 321263441 is 144362123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 230918416 + 90345025 = 15196^2 + 9505^2 .

It is a cyclic number.

It is not a de Polignac number, because 321263441 - 2¹⁴ = 321247057 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 321263441.

It is not a weakly prime, because it can be changed into another prime (321263461) 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, 160631720 + 160631721.

It is an arithmetic number, because the mean of its divisors is an integer number (160631721).

Almost surely, 2^321263441 is an apocalyptic number.

It is an amenable number.

321263441 is a deficient number, since it is larger than the sum of its proper divisors (1).

321263441 is an equidigital number, since it uses as much as digits as its factorization.

321263441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 26.

The square root of 321263441 is about 17923.8232807624. The cubic root of 321263441 is about 684.8893855878.

The spelling of 321263441 in words is "three hundred twenty-one million, two hundred sixty-three thousand, four hundred forty-one".