321010049 has 2 divisors, whose sum is σ = 321010050. Its totient is φ = 321010048.

The previous prime is 321010009. The next prime is 321010163. The reversal of 321010049 is 940010123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 263477824 + 57532225 = 16232^2 + 7585^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321010049 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 321010049.

It is not a weakly prime, because it can be changed into another prime (321010009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160505024 + 160505025.

It is an arithmetic number, because the mean of its divisors is an integer number (160505025).

Almost surely, 2^321010049 is an apocalyptic number.

It is an amenable number.

321010049 is a deficient number, since it is larger than the sum of its proper divisors (1).

321010049 is an equidigital number, since it uses as much as digits as its factorization.

321010049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 321010049 is about 17916.7533052169. The cubic root of 321010049 is about 684.7092726169.

The spelling of 321010049 in words is "three hundred twenty-one million, ten thousand, forty-nine".