23161203 has 12 divisors (see below), whose sum is σ = 36028720. Its totient is φ = 14252976.

The previous prime is 23161199. The next prime is 23161241. The reversal of 23161203 is 30216132.

It is not a de Polignac number, because 23161203 - 2² = 23161199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23161283) 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 11 ways as a sum of consecutive naturals, for example, 98863 + ... + 99096.

Almost surely, 2^23161203 is an apocalyptic number.

23161203 is a deficient number, since it is larger than the sum of its proper divisors (12867517).

23161203 is a wasteful number, since it uses less digits than its factorization.

23161203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197978 (or 197975 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 23161203 is about 4812.6087520180. The cubic root of 23161203 is about 285.0495574025.

Adding to 23161203 its reverse (30216132), we get a palindrome (53377335).

The spelling of 23161203 in words is "twenty-three million, one hundred sixty-one thousand, two hundred three".