321252749063 has 2 divisors, whose sum is σ = 321252749064. Its totient is φ = 321252749062.

The previous prime is 321252749039. The next prime is 321252749089. The reversal of 321252749063 is 360947252123.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321252749063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321252749003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160626374531 + 160626374532.

It is an arithmetic number, because the mean of its divisors is an integer number (160626374532).

Almost surely, 2^321252749063 is an apocalyptic number.

321252749063 is a deficient number, since it is larger than the sum of its proper divisors (1).

321252749063 is an equidigital number, since it uses as much as digits as its factorization.

321252749063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 544320, while the sum is 44.

The spelling of 321252749063 in words is "three hundred twenty-one billion, two hundred fifty-two million, seven hundred forty-nine thousand, sixty-three".