320420103 has 8 divisors (see below), whose sum is σ = 436316928. Its totient is φ = 209068344.

The previous prime is 320420099. The next prime is 320420117. The reversal of 320420103 is 301024023.

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

It is not a de Polignac number, because 320420103 - 2² = 320420099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320420143) 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, 1136101 + ... + 1136382.

It is an arithmetic number, because the mean of its divisors is an integer number (54539616).

Almost surely, 2^320420103 is an apocalyptic number.

320420103 is a deficient number, since it is larger than the sum of its proper divisors (115896825).

320420103 is a wasteful number, since it uses less digits than its factorization.

320420103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2272533.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 320420103 is about 17900.2822044793. The cubic root of 320420103 is about 684.2895669590.

Adding to 320420103 its reverse (301024023), we get a palindrome (621444126).

The spelling of 320420103 in words is "three hundred twenty million, four hundred twenty thousand, one hundred three".