23011205 has 16 divisors (see below), whose sum is σ = 31795200. Its totient is φ = 15660672.

The previous prime is 23011189. The next prime is 23011211. The reversal of 23011205 is 50211032.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 23011205 - 2⁴ = 23011189 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 23011205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2396 + ... + 7194.

It is an arithmetic number, because the mean of its divisors is an integer number (1987200).

Almost surely, 2^23011205 is an apocalyptic number.

It is an amenable number.

23011205 is a deficient number, since it is larger than the sum of its proper divisors (8783995).

23011205 is a wasteful number, since it uses less digits than its factorization.

23011205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4948.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 23011205 is about 4796.9995830727. Note that the first 3 decimals coincide. The cubic root of 23011205 is about 284.4328724145.

Adding to 23011205 its reverse (50211032), we get a palindrome (73222237).

The spelling of 23011205 in words is "twenty-three million, eleven thousand, two hundred five".