23280203 has 4 divisors (see below), whose sum is σ = 23410440. Its totient is φ = 23149968.

The previous prime is 23280199. The next prime is 23280217. The reversal of 23280203 is 30208232.

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 23280203 - 2² = 23280199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23286203) 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 3 ways as a sum of consecutive naturals, for example, 64850 + ... + 65207.

It is an arithmetic number, because the mean of its divisors is an integer number (5852610).

Almost surely, 2^23280203 is an apocalyptic number.

23280203 is a deficient number, since it is larger than the sum of its proper divisors (130237).

23280203 is a wasteful number, since it uses less digits than its factorization.

23280203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130236.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 23280203 is about 4824.9562692319. The cubic root of 23280203 is about 285.5369092973.

Adding to 23280203 its reverse (30208232), we get a palindrome (53488435).

The spelling of 23280203 in words is "twenty-three million, two hundred eighty thousand, two hundred three".