321424103 has 48 divisors (see below), whose sum is σ = 451885056. Its totient is φ = 220777920.

The previous prime is 321424099. The next prime is 321424109. The reversal of 321424103 is 301424123.

It is not a de Polignac number, because 321424103 - 2² = 321424099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321424109) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 529226 + ... + 529832.

It is an arithmetic number, because the mean of its divisors is an integer number (9414272).

Almost surely, 2^321424103 is an apocalyptic number.

321424103 is a deficient number, since it is larger than the sum of its proper divisors (130460953).

321424103 is a wasteful number, since it uses less digits than its factorization.

321424103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684 (or 661 counting only the distinct ones).

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

The square root of 321424103 is about 17928.3045210639. The cubic root of 321424103 is about 685.0035363094.

Adding to 321424103 its sum of digits (20), we get a palindrome (321424123).

Adding to 321424103 its reverse (301424123), we get a palindrome (622848226).

It can be divided in two parts, 321 and 424103, that added together give a palindrome (424424).

The spelling of 321424103 in words is "three hundred twenty-one million, four hundred twenty-four thousand, one hundred three".