20023203 has 4 divisors (see below), whose sum is σ = 26697608. Its totient is φ = 13348800.

The previous prime is 20023187. The next prime is 20023259. The reversal of 20023203 is 30232002.

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

It is not a de Polignac number, because 20023203 - 2⁴ = 20023187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20023273) 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, 3337198 + ... + 3337203.

It is an arithmetic number, because the mean of its divisors is an integer number (6674402).

Almost surely, 2^20023203 is an apocalyptic number.

20023203 is a deficient number, since it is larger than the sum of its proper divisors (6674405).

20023203 is an equidigital number, since it uses as much as digits as its factorization.

20023203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6674404.

The product of its (nonzero) digits is 72, while the sum is 12.

The square root of 20023203 is about 4474.7293772920. The cubic root of 20023203 is about 271.5466921448.

Adding to 20023203 its reverse (30232002), we get a palindrome (50255205).

The spelling of 20023203 in words is "twenty million, twenty-three thousand, two hundred three".