23133223133 has 4 divisors (see below), whose sum is σ = 23161818780. Its totient is φ = 23104627488.

The previous prime is 23133223079. The next prime is 23133223147. The reversal of 23133223133 is 33132233132.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9459896644 + 13673326489 = 97262^2 + 116933^2 .

It is a cyclic number.

It is not a de Polignac number, because 23133223133 - 2¹⁴ = 23133206749 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 (23133226133) 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, 14296610 + ... + 14298227.

It is an arithmetic number, because the mean of its divisors is an integer number (5790454695).

Almost surely, 2^23133223133 is an apocalyptic number.

It is an amenable number.

23133223133 is a deficient number, since it is larger than the sum of its proper divisors (28595647).

23133223133 is an equidigital number, since it uses as much as digits as its factorization.

23133223133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28595646.

The product of its digits is 5832, while the sum is 26.

Adding to 23133223133 its reverse (33132233132), we get a palindrome (56265456265).

Subtracting 23133223133 from its reverse (33132233132), we obtain a palindrome (9999009999).

The spelling of 23133223133 in words is "twenty-three billion, one hundred thirty-three million, two hundred twenty-three thousand, one hundred thirty-three".