12133325523 has 16 divisors (see below), whose sum is σ = 18058905216. Its totient is φ = 7182517440.

The previous prime is 12133325513. The next prime is 12133325543. The reversal of 12133325523 is 32552333121.

It is a happy number.

It is not a de Polignac number, because 12133325523 - 2²⁵ = 12099771091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12133325513) 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, 4273890 + ... + 4276727.

It is an arithmetic number, because the mean of its divisors is an integer number (1128681576).

Almost surely, 2^12133325523 is an apocalyptic number.

12133325523 is a deficient number, since it is larger than the sum of its proper divisors (5925579693).

12133325523 is a wasteful number, since it uses less digits than its factorization.

12133325523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8550674.

The product of its digits is 16200, while the sum is 30.

Adding to 12133325523 its reverse (32552333121), we get a palindrome (44685658644).

The spelling of 12133325523 in words is "twelve billion, one hundred thirty-three million, three hundred twenty-five thousand, five hundred twenty-three".