23011504 has 20 divisors (see below), whose sum is σ = 45047464. Its totient is φ = 11386368.

The previous prime is 23011481. The next prime is 23011519. The reversal of 23011504 is 40511032.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5862 + ... + 8965.

Almost surely, 2^23011504 is an apocalyptic number.

It is an amenable number.

23011504 is a deficient number, since it is larger than the sum of its proper divisors (22035960).

23011504 is a wasteful number, since it uses less digits than its factorization.

23011504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14932 (or 14926 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 23011504 is about 4797.0307482859. The cubic root of 23011504 is about 284.4341043514.

Adding to 23011504 its reverse (40511032), we get a palindrome (63522536).

The spelling of 23011504 in words is "twenty-three million, eleven thousand, five hundred four".