23113505 has 8 divisors (see below), whose sum is σ = 28942272. Its totient is φ = 17686768.

The previous prime is 23113501. The next prime is 23113513. The reversal of 23113505 is 50531132.

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 23113505 - 2² = 23113501 is a prime.

It is a super-2 number, since 2×23113505² = 1068468226770050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23113501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100379 + ... + 100608.

It is an arithmetic number, because the mean of its divisors is an integer number (3617784).

Almost surely, 2^23113505 is an apocalyptic number.

It is an amenable number.

23113505 is a deficient number, since it is larger than the sum of its proper divisors (5828767).

23113505 is a wasteful number, since it uses less digits than its factorization.

23113505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201015.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 23113505 is about 4807.6506736659. The cubic root of 23113505 is about 284.8537466488.

Adding to 23113505 its reverse (50531132), we get a palindrome (73644637).

The spelling of 23113505 in words is "twenty-three million, one hundred thirteen thousand, five hundred five".