100030503 has 8 divisors (see below), whose sum is σ = 134145648. Its totient is φ = 66301184.

The previous prime is 100030487. The next prime is 100030507. The reversal of 100030503 is 305030001.

It is a happy number.

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 100030503 - 2⁴ = 100030487 is a prime.

It is a super-2 number, since 2×100030503² = 20012203060866018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100030507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95850 + ... + 96887.

It is an arithmetic number, because the mean of its divisors is an integer number (16768206).

Almost surely, 2^100030503 is an apocalyptic number.

100030503 is a deficient number, since it is larger than the sum of its proper divisors (34115145).

100030503 is a wasteful number, since it uses less digits than its factorization.

100030503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192913.

The product of its (nonzero) digits is 45, while the sum is 12.

The square root of 100030503 is about 10001.5250337136. The cubic root of 100030503 is about 464.2060726916.

Adding to 100030503 its reverse (305030001), we get a palindrome (405060504).

The spelling of 100030503 in words is "one hundred million, thirty thousand, five hundred three".