100113603 has 24 divisors (see below), whose sum is σ = 142481808. Its totient is φ = 62512128.

The previous prime is 100113577. The next prime is 100113623. The reversal of 100113603 is 306311001.

It is not a de Polignac number, because 100113603 - 2⁸ = 100113347 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100113623) 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 23 ways as a sum of consecutive naturals, for example, 104575 + ... + 105527.

It is an arithmetic number, because the mean of its divisors is an integer number (5936742).

Almost surely, 2^100113603 is an apocalyptic number.

100113603 is a deficient number, since it is larger than the sum of its proper divisors (42368205).

100113603 is an equidigital number, since it uses as much as digits as its factorization.

100113603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091 (or 1072 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 100113603 is about 10005.6785377105. The cubic root of 100113603 is about 464.3345829835.

Adding to 100113603 its reverse (306311001), we get a palindrome (406424604).

The spelling of 100113603 in words is "one hundred million, one hundred thirteen thousand, six hundred three".