23515314223 has 4 divisors (see below), whose sum is σ = 24752962360. Its totient is φ = 22277666088.

The previous prime is 23515314217. The next prime is 23515314233. The reversal of 23515314223 is 32241351532.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23515314223 - 2³³ = 14925379631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23515314233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 618824040 + ... + 618824077.

It is an arithmetic number, because the mean of its divisors is an integer number (6188240590).

Almost surely, 2^23515314223 is an apocalyptic number.

23515314223 is a deficient number, since it is larger than the sum of its proper divisors (1237648137).

23515314223 is a wasteful number, since it uses less digits than its factorization.

23515314223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1237648136.

The product of its digits is 21600, while the sum is 31.

Adding to 23515314223 its reverse (32241351532), we get a palindrome (55756665755).

The spelling of 23515314223 in words is "twenty-three billion, five hundred fifteen million, three hundred fourteen thousand, two hundred twenty-three".