321403252362523 has 2 divisors, whose sum is σ = 321403252362524. Its totient is φ = 321403252362522.

The previous prime is 321403252362503. The next prime is 321403252362529. The reversal of 321403252362523 is 325263252304123.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 321403252362523 - 2⁴⁵ = 286218880273691 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 321403252362523.

It is not a weakly prime, because it can be changed into another prime (321403252362529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160701626181261 + 160701626181262.

It is an arithmetic number, because the mean of its divisors is an integer number (160701626181262).

Almost surely, 2^{321403252362523} is an apocalyptic number.

321403252362523 is a deficient number, since it is larger than the sum of its proper divisors (1).

321403252362523 is an equidigital number, since it uses as much as digits as its factorization.

321403252362523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1555200, while the sum is 43.

The spelling of 321403252362523 in words is "three hundred twenty-one trillion, four hundred three billion, two hundred fifty-two million, three hundred sixty-two thousand, five hundred twenty-three".