100004003 has 4 divisors (see below), whose sum is σ = 109095288. Its totient is φ = 90912720.

The previous prime is 100003963. The next prime is 100004017. The reversal of 100004003 is 300400001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 300400001 = 11 ⋅27309091.

It is a cyclic number.

It is not a de Polignac number, because 100004003 - 2¹⁰ = 100002979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100004503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4545626 + ... + 4545647.

It is an arithmetic number, because the mean of its divisors is an integer number (27273822).

Almost surely, 2^100004003 is an apocalyptic number.

100004003 is a deficient number, since it is larger than the sum of its proper divisors (9091285).

100004003 is an equidigital number, since it uses as much as digits as its factorization.

100004003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9091284.

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 100004003 is about 10000.2001479970. The cubic root of 100004003 is about 464.1650767053.

Adding to 100004003 its reverse (300400001), we get a palindrome (400404004).

The spelling of 100004003 in words is "one hundred million, four thousand, three".