321303210077 has 2 divisors, whose sum is σ = 321303210078. Its totient is φ = 321303210076.

The previous prime is 321303210047. The next prime is 321303210113. The reversal of 321303210077 is 770012303123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 311376276121 + 9926933956 = 558011^2 + 99634^2 .

It is a cyclic number.

It is not a de Polignac number, because 321303210077 - 2¹⁴ = 321303193693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321303210047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160651605038 + 160651605039.

It is an arithmetic number, because the mean of its divisors is an integer number (160651605039).

Almost surely, 2^321303210077 is an apocalyptic number.

It is an amenable number.

321303210077 is a deficient number, since it is larger than the sum of its proper divisors (1).

321303210077 is an equidigital number, since it uses as much as digits as its factorization.

321303210077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5292, while the sum is 29.

The spelling of 321303210077 in words is "three hundred twenty-one billion, three hundred three million, two hundred ten thousand, seventy-seven".