100220323 has 4 divisors (see below), whose sum is σ = 114537520. Its totient is φ = 85903128.

The previous prime is 100220311. The next prime is 100220327. The reversal of 100220323 is 323022001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 323022001 = 431 ⋅749471.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100220323 is a prime.

It is a super-2 number, since 2×100220323² = 20088226284448658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100220327) 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, 7158588 + ... + 7158601.

It is an arithmetic number, because the mean of its divisors is an integer number (28634380).

Almost surely, 2^100220323 is an apocalyptic number.

100220323 is a deficient number, since it is larger than the sum of its proper divisors (14317197).

100220323 is an equidigital number, since it uses as much as digits as its factorization.

100220323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14317196.

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

The square root of 100220323 is about 10011.0100888971. The cubic root of 100220323 is about 464.4995162450.

Adding to 100220323 its reverse (323022001), we get a palindrome (423242324).

The spelling of 100220323 in words is "one hundred million, two hundred twenty thousand, three hundred twenty-three".