100000203 has 16 divisors (see below), whose sum is σ = 138565632. Its totient is φ = 64080000.

The previous prime is 100000193. The next prime is 100000213. The reversal of 100000203 is 302000001.

It is an interprime number because it is at equal distance from previous prime (100000193) and next prime (100000213).

It is not a de Polignac number, because 100000203 - 2¹⁷ = 99869131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100000191 and 100000200.

It is not an unprimeable number, because it can be changed into a prime (100000213) 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 15 ways as a sum of consecutive naturals, for example, 10483 + ... + 17603.

It is an arithmetic number, because the mean of its divisors is an integer number (8660352).

Almost surely, 2^100000203 is an apocalyptic number.

100000203 is a deficient number, since it is larger than the sum of its proper divisors (38565429).

100000203 is a wasteful number, since it uses less digits than its factorization.

100000203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7306.

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

The square root of 100000203 is about 10000.0101499948. The cubic root of 100000203 is about 464.1591974419.

Adding to 100000203 its reverse (302000001), we get a palindrome (402000204).

The spelling of 100000203 in words is "one hundred million, two hundred three", and thus it is an aban number.