321363899 has 2 divisors, whose sum is σ = 321363900. Its totient is φ = 321363898.

The previous prime is 321363893. The next prime is 321363901. The reversal of 321363899 is 998363123.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 321363899 - 2⁸ = 321363643 is a prime.

Together with 321363901, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (321363893) 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, 160681949 + 160681950.

It is an arithmetic number, because the mean of its divisors is an integer number (160681950).

Almost surely, 2^321363899 is an apocalyptic number.

321363899 is a deficient number, since it is larger than the sum of its proper divisors (1).

321363899 is an equidigital number, since it uses as much as digits as its factorization.

321363899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 209952, while the sum is 44.

The square root of 321363899 is about 17926.6254214227. The cubic root of 321363899 is about 684.9607656858.

The spelling of 321363899 in words is "three hundred twenty-one million, three hundred sixty-three thousand, eight hundred ninety-nine".