321203111200393 has 2 divisors, whose sum is σ = 321203111200394. Its totient is φ = 321203111200392.

The previous prime is 321203111200343. The next prime is 321203111200421. The reversal of 321203111200393 is 393002111302123.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 314284359556489 + 6918751643904 = 17728067^2 + 2630352^2 .

It is an emirp because it is prime and its reverse (393002111302123) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 321203111200393 - 2³³ = 321194521265801 is a prime.

It is not a weakly prime, because it can be changed into another prime (321203111200303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160601555600196 + 160601555600197.

It is an arithmetic number, because the mean of its divisors is an integer number (160601555600197).

Almost surely, 2^{321203111200393} is an apocalyptic number.

It is an amenable number.

321203111200393 is a deficient number, since it is larger than the sum of its proper divisors (1).

321203111200393 is an equidigital number, since it uses as much as digits as its factorization.

321203111200393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 31.

The spelling of 321203111200393 in words is "three hundred twenty-one trillion, two hundred three billion, one hundred eleven million, two hundred thousand, three hundred ninety-three".