23220203 has 4 divisors (see below), whose sum is σ = 23450208. Its totient is φ = 22990200.

The previous prime is 23220187. The next prime is 23220221. The reversal of 23220203 is 30202232.

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 23220203 - 2⁴ = 23220187 is a prime.

It is a super-2 number, since 2×23220203² = 1078355654722418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23220403) 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, 114851 + ... + 115052.

It is an arithmetic number, because the mean of its divisors is an integer number (5862552).

Almost surely, 2^23220203 is an apocalyptic number.

23220203 is a deficient number, since it is larger than the sum of its proper divisors (230005).

23220203 is a wasteful number, since it uses less digits than its factorization.

23220203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230004.

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

The square root of 23220203 is about 4818.7345849299. The cubic root of 23220203 is about 285.2913937701.

Adding to 23220203 its reverse (30202232), we get a palindrome (53422435).

The spelling of 23220203 in words is "twenty-three million, two hundred twenty thousand, two hundred three".