23124513 has 16 divisors (see below), whose sum is σ = 32155200. Its totient is φ = 14763840.

The previous prime is 23124511. The next prime is 23124529. The reversal of 23124513 is 31542132.

It is not a de Polignac number, because 23124513 - 2¹ = 23124511 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23124513.

It is not an unprimeable number, because it can be changed into a prime (23124511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10383 + ... + 12411.

It is an arithmetic number, because the mean of its divisors is an integer number (2009700).

Almost surely, 2^23124513 is an apocalyptic number.

It is an amenable number.

23124513 is a deficient number, since it is larger than the sum of its proper divisors (9030687).

23124513 is a wasteful number, since it uses less digits than its factorization.

23124513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2192.

The product of its digits is 720, while the sum is 21.

The square root of 23124513 is about 4808.7953793024. The cubic root of 23124513 is about 284.8989607978.

Adding to 23124513 its reverse (31542132), we get a palindrome (54666645).

The spelling of 23124513 in words is "twenty-three million, one hundred twenty-four thousand, five hundred thirteen".