220123003 has 4 divisors (see below), whose sum is σ = 220337128. Its totient is φ = 219908880.

The previous prime is 220122997. The next prime is 220123031. The reversal of 220123003 is 300321022.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 220123003 - 2¹⁷ = 219991931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220123093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105513 + ... + 107578.

It is an arithmetic number, because the mean of its divisors is an integer number (55084282).

Almost surely, 2^220123003 is an apocalyptic number.

220123003 is a deficient number, since it is larger than the sum of its proper divisors (214125).

220123003 is a wasteful number, since it uses less digits than its factorization.

220123003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214124.

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

The square root of 220123003 is about 14836.5428250654. The cubic root of 220123003 is about 603.7935596627.

Adding to 220123003 its reverse (300321022), we get a palindrome (520444025).

The spelling of 220123003 in words is "two hundred twenty million, one hundred twenty-three thousand, three".