23152333231 has 4 divisors (see below), whose sum is σ = 23152712872. Its totient is φ = 23151953592.

The previous prime is 23152333223. The next prime is 23152333273. The reversal of 23152333231 is 13233325132.

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 23152333231 - 2³ = 23152333223 is a prime.

It is a super-2 number, since 2×23152333231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23152333231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23152333931) 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, 75321 + ... + 227986.

It is an arithmetic number, because the mean of its divisors is an integer number (5788178218).

Almost surely, 2^23152333231 is an apocalyptic number.

23152333231 is a deficient number, since it is larger than the sum of its proper divisors (379641).

23152333231 is an equidigital number, since it uses as much as digits as its factorization.

23152333231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379640.

The product of its digits is 9720, while the sum is 28.

Adding to 23152333231 its reverse (13233325132), we get a palindrome (36385658363).

The spelling of 23152333231 in words is "twenty-three billion, one hundred fifty-two million, three hundred thirty-three thousand, two hundred thirty-one".