100013000203 has 16 divisors (see below), whose sum is σ = 110008468224. Its totient is φ = 90513146880.

The previous prime is 100013000093. The next prime is 100013000207. The reversal of 100013000203 is 302000310001.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100013000203 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 100013000203.

It is not an unprimeable number, because it can be changed into a prime (100013000207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 521650 + ... + 687127.

It is an arithmetic number, because the mean of its divisors is an integer number (6875529264).

Almost surely, 2^100013000203 is an apocalyptic number.

100013000203 is a deficient number, since it is larger than the sum of its proper divisors (9995468021).

100013000203 is a wasteful number, since it uses less digits than its factorization.

100013000203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1208982.

The product of its (nonzero) digits is 18, while the sum is 10.

Adding to 100013000203 its reverse (302000310001), we get a palindrome (402013310204).

The spelling of 100013000203 in words is "one hundred billion, thirteen million, two hundred three", and thus it is an aban number.