100300203 has 6 divisors (see below), whose sum is σ = 144878084. Its totient is φ = 66866796.

The previous prime is 100300199. The next prime is 100300219. The reversal of 100300203 is 302003001.

It is a happy number.

It is not a de Polignac number, because 100300203 - 2² = 100300199 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 11144467 = 100300203 / (1 + 0 + 0 + 3 + 0 + 0 + 2 + 0 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100300223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5572225 + ... + 5572242.

Almost surely, 2^100300203 is an apocalyptic number.

100300203 is a deficient number, since it is larger than the sum of its proper divisors (44577881).

100300203 is a wasteful number, since it uses less digits than its factorization.

100300203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11144473 (or 11144470 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 9.

The square root of 100300203 is about 10014.9989016475. The cubic root of 100300203 is about 464.6228923118.

Adding to 100300203 its reverse (302003001), we get a palindrome (402303204).

The spelling of 100300203 in words is "one hundred million, three hundred thousand, two hundred three".