321044223077 has 2 divisors, whose sum is σ = 321044223078. Its totient is φ = 321044223076.

The previous prime is 321044223061. The next prime is 321044223113. The reversal of 321044223077 is 770322440123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 295499872801 + 25544350276 = 543599^2 + 159826^2 .

It is an emirp because it is prime and its reverse (770322440123) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 321044223077 - 2⁴ = 321044223061 is a prime.

It is a super-2 number, since 2×321044223077² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321044523077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160522111538 + 160522111539.

It is an arithmetic number, because the mean of its divisors is an integer number (160522111539).

Almost surely, 2^321044223077 is an apocalyptic number.

It is an amenable number.

321044223077 is a deficient number, since it is larger than the sum of its proper divisors (1).

321044223077 is an equidigital number, since it uses as much as digits as its factorization.

321044223077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 35.

The spelling of 321044223077 in words is "three hundred twenty-one billion, forty-four million, two hundred twenty-three thousand, seventy-seven".