100320603 has 8 divisors (see below), whose sum is σ = 133943808. Its totient is φ = 66788904.

The previous prime is 100320593. The next prime is 100320611. The reversal of 100320603 is 306023001.

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

It is not a de Polignac number, because 100320603 - 2¹⁸ = 100058459 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100320613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20275 + ... + 24732.

It is an arithmetic number, because the mean of its divisors is an integer number (16742976).

Almost surely, 2^100320603 is an apocalyptic number.

100320603 is a deficient number, since it is larger than the sum of its proper divisors (33623205).

100320603 is an equidigital number, since it uses as much as digits as its factorization.

100320603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45753.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 100320603 is about 10016.0173222694. The cubic root of 100320603 is about 464.6543899699.

Adding to 100320603 its reverse (306023001), we get a palindrome (406343604).

The spelling of 100320603 in words is "one hundred million, three hundred twenty thousand, six hundred three".