321430103 has 8 divisors (see below), whose sum is σ = 332107776. Its totient is φ = 310771800.

The previous prime is 321430099. The next prime is 321430141. The reversal of 321430103 is 301034123.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 321430103 - 2² = 321430099 is a prime.

It is a super-2 number, since 2×321430103² = 206634622229181218, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321432103) 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 in 7 ways as a sum of consecutive naturals, for example, 33950 + ... + 42372.

It is an arithmetic number, because the mean of its divisors is an integer number (41513472).

Almost surely, 2^321430103 is an apocalyptic number.

321430103 is a deficient number, since it is larger than the sum of its proper divisors (10677673).

321430103 is a wasteful number, since it uses less digits than its factorization.

321430103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9685.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 321430103 is about 17928.4718534514. The cubic root of 321430103 is about 685.0077985863.

Adding to 321430103 its reverse (301034123), we get a palindrome (622464226).

The spelling of 321430103 in words is "three hundred twenty-one million, four hundred thirty thousand, one hundred three".