100423003 has 4 divisors (see below), whose sum is σ = 101088208. Its totient is φ = 99757800.

The previous prime is 100422989. The next prime is 100423021. The reversal of 100423003 is 300324001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100423003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100423093) 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 3 ways as a sum of consecutive naturals, for example, 332376 + ... + 332677.

It is an arithmetic number, because the mean of its divisors is an integer number (25272052).

Almost surely, 2^100423003 is an apocalyptic number.

100423003 is a deficient number, since it is larger than the sum of its proper divisors (665205).

100423003 is an equidigital number, since it uses as much as digits as its factorization.

100423003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665204.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 100423003 is about 10021.1278307384. The cubic root of 100423003 is about 464.8124313836.

Adding to 100423003 its reverse (300324001), we get a palindrome (400747004).

The spelling of 100423003 in words is "one hundred million, four hundred twenty-three thousand, three".