20203223 has 8 divisors (see below), whose sum is σ = 21350400. Its totient is φ = 19078488.

The previous prime is 20203217. The next prime is 20203237. The reversal of 20203223 is 32230202.

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 20203223 - 2¹⁴ = 20186839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20203198 and 20203207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20203243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3743 + ... + 7376.

It is an arithmetic number, because the mean of its divisors is an integer number (2668800).

Almost surely, 2^20203223 is an apocalyptic number.

20203223 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

20203223 is a deficient number, since it is larger than the sum of its proper divisors (1147177).

20203223 is a wasteful number, since it uses less digits than its factorization.

20203223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11221.

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 20203223 is about 4494.7995505918. The cubic root of 20203223 is about 272.3580519298.

Adding to 20203223 its reverse (32230202), we get a palindrome (52433425).

The spelling of 20203223 in words is "twenty million, two hundred three thousand, two hundred twenty-three".