321327103 has 2 divisors, whose sum is σ = 321327104. Its totient is φ = 321327102.

The previous prime is 321327101. The next prime is 321327133. The reversal of 321327103 is 301723123.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 321327103 - 2¹ = 321327101 is a prime.

It is a super-2 number, since 2×321327103² = 206502214244745218, which contains 22 as substring.

Together with 321327101, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321327101) 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, 160663551 + 160663552.

It is an arithmetic number, because the mean of its divisors is an integer number (160663552).

Almost surely, 2^321327103 is an apocalyptic number.

321327103 is a deficient number, since it is larger than the sum of its proper divisors (1).

321327103 is an equidigital number, since it uses as much as digits as its factorization.

321327103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 321327103 is about 17925.5990973803. The cubic root of 321327103 is about 684.9346221370.

The spelling of 321327103 in words is "three hundred twenty-one million, three hundred twenty-seven thousand, one hundred three".