100223503 has 4 divisors (see below), whose sum is σ = 100243528. Its totient is φ = 100203480.

The previous prime is 100223471. The next prime is 100223521. The reversal of 100223503 is 305322001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 305322001 = 19 ⋅16069579.

It is a cyclic number.

It is not a de Polignac number, because 100223503 - 2⁵ = 100223471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100223533) 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, 4813 + ... + 14953.

It is an arithmetic number, because the mean of its divisors is an integer number (25060882).

Almost surely, 2^100223503 is an apocalyptic number.

100223503 is a deficient number, since it is larger than the sum of its proper divisors (20025).

100223503 is an equidigital number, since it uses as much as digits as its factorization.

100223503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20024.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 100223503 is about 10011.1689127694. The cubic root of 100223503 is about 464.5044290637.

Adding to 100223503 its reverse (305322001), we get a palindrome (405545504).

The spelling of 100223503 in words is "one hundred million, two hundred twenty-three thousand, five hundred three".