100100203 has 8 divisors (see below), whose sum is σ = 114697440. Its totient is φ = 85577280.

The previous prime is 100100197. The next prime is 100100239. The reversal of 100100203 is 302001001.

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 100100203 - 2¹⁷ = 99969131 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100100243) 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, 15658 + ... + 21103.

It is an arithmetic number, because the mean of its divisors is an integer number (14337180).

Almost surely, 2^100100203 is an apocalyptic number.

100100203 is a deficient number, since it is larger than the sum of its proper divisors (14597237).

100100203 is an equidigital number, since it uses as much as digits as its factorization.

100100203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37157.

The product of its (nonzero) digits is 6, while the sum is 7.

The square root of 100100203 is about 10005.0088955483. The cubic root of 100100203 is about 464.3138653159.

Adding to 100100203 its reverse (302001001), we get a palindrome (402101204).

The spelling of 100100203 in words is "one hundred million, one hundred thousand, two hundred three".