321103424 has 14 divisors (see below), whose sum is σ = 637189734. Its totient is φ = 160551680.

The previous prime is 321103381. The next prime is 321103441. The reversal of 321103424 is 424301123.

321103424 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 309760000 + 11343424 = 17600^2 + 3368^2 .

It is a junction number, because it is equal to n+sod(n) for n = 321103396 and 321103405.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2508557 + ... + 2508684.

Almost surely, 2^321103424 is an apocalyptic number.

It is an amenable number.

321103424 is a deficient number, since it is larger than the sum of its proper divisors (316086310).

321103424 is an equidigital number, since it uses as much as digits as its factorization.

321103424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5017253 (or 5017243 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 321103424 is about 17919.3589171041. The cubic root of 321103424 is about 684.7756553054.

Adding to 321103424 its reverse (424301123), we get a palindrome (745404547).

The spelling of 321103424 in words is "three hundred twenty-one million, one hundred three thousand, four hundred twenty-four".