23123320504 has 16 divisors (see below), whose sum is σ = 43409047320. Its totient is φ = 11547574560.

The previous prime is 23123320501. The next prime is 23123320531. The reversal of 23123320504 is 40502332132.

It is a super-2 number, since 2×23123320504² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23123320501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1753734 + ... + 1766869.

Almost surely, 2^23123320504 is an apocalyptic number.

It is an amenable number.

23123320504 is a deficient number, since it is larger than the sum of its proper divisors (20285726816).

23123320504 is a wasteful number, since it uses less digits than its factorization.

23123320504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3521430 (or 3521426 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 23123320504 its reverse (40502332132), we get a palindrome (63625652636).

The spelling of 23123320504 in words is "twenty-three billion, one hundred twenty-three million, three hundred twenty thousand, five hundred four".