103424321 has 32 divisors (see below), whose sum is σ = 139738368. Its totient is φ = 73923840.

The previous prime is 103424297. The next prime is 103424329. The reversal of 103424321 is 123424301.

It is a cyclic number.

It is not a de Polignac number, because 103424321 - 2¹⁰ = 103423297 is a prime.

It is a super-2 number, since 2×103424321² = 21393180348622082, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 103424293 and 103424302.

It is not an unprimeable number, because it can be changed into a prime (103424329) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 277091 + ... + 277463.

It is an arithmetic number, because the mean of its divisors is an integer number (4366824).

Almost surely, 2^103424321 is an apocalyptic number.

103424321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

103424321 is a deficient number, since it is larger than the sum of its proper divisors (36314047).

103424321 is a wasteful number, since it uses less digits than its factorization.

103424321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681.

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

The square root of 103424321 is about 10169.7748745978. The cubic root of 103424321 is about 469.3976303020.

Subtracting from 103424321 its sum of digits (20), we obtain a palindrome (103424301).

Adding to 103424321 its reverse (123424301), we get a palindrome (226848622).

It can be divided in two parts, 103 and 424321, that added together give a palindrome (424424).

The spelling of 103424321 in words is "one hundred three million, four hundred twenty-four thousand, three hundred twenty-one".