23133355523 has 4 divisors (see below), whose sum is σ = 24494141160. Its totient is φ = 21772569888.

The previous prime is 23133355481. The next prime is 23133355537. The reversal of 23133355523 is 32555333132.

It is a happy number.

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 23133355523 - 2¹² = 23133351427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23133355543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 680392793 + ... + 680392826.

It is an arithmetic number, because the mean of its divisors is an integer number (6123535290).

Almost surely, 2^23133355523 is an apocalyptic number.

23133355523 is a deficient number, since it is larger than the sum of its proper divisors (1360785637).

23133355523 is a wasteful number, since it uses less digits than its factorization.

23133355523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1360785636.

The product of its digits is 121500, while the sum is 35.

Adding to 23133355523 its reverse (32555333132), we get a palindrome (55688688655).

The spelling of 23133355523 in words is "twenty-three billion, one hundred thirty-three million, three hundred fifty-five thousand, five hundred twenty-three".