16321103 has 2 divisors, whose sum is σ = 16321104. Its totient is φ = 16321102.

The previous prime is 16321093. The next prime is 16321127. The reversal of 16321103 is 30112361.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16321103 - 2¹⁴ = 16304719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16321303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8160551 + 8160552.

It is an arithmetic number, because the mean of its divisors is an integer number (8160552).

Almost surely, 2^16321103 is an apocalyptic number.

16321103 is a deficient number, since it is larger than the sum of its proper divisors (1).

16321103 is an equidigital number, since it uses as much as digits as its factorization.

16321103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 16321103 is about 4039.9384896308. The cubic root of 16321103 is about 253.6587425330.

Adding to 16321103 its reverse (30112361), we get a palindrome (46433464).

The spelling of 16321103 in words is "sixteen million, three hundred twenty-one thousand, one hundred three".