321420004324303 has 2 divisors, whose sum is σ = 321420004324304. Its totient is φ = 321420004324302.

The previous prime is 321420004324201. The next prime is 321420004324327. The reversal of 321420004324303 is 303423400024123.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (303423400024123) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 321420004324303 - 2⁹ = 321420004323791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321420004324343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160710002162151 + 160710002162152.

It is an arithmetic number, because the mean of its divisors is an integer number (160710002162152).

Almost surely, 2^{321420004324303} is an apocalyptic number.

321420004324303 is a deficient number, since it is larger than the sum of its proper divisors (1).

321420004324303 is an equidigital number, since it uses as much as digits as its factorization.

321420004324303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 31.

Adding to 321420004324303 its reverse (303423400024123), we get a palindrome (624843404348426).

The spelling of 321420004324303 in words is "three hundred twenty-one trillion, four hundred twenty billion, four million, three hundred twenty-four thousand, three hundred three".