12133133233 has 4 divisors (see below), whose sum is σ = 13066451188. Its totient is φ = 11199815280.

The previous prime is 12133133231. The next prime is 12133133249. The reversal of 12133133233 is 33233133121.

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 3106613169 + 9026520064 = 55737^2 + 95008^2 .

It is a cyclic number.

It is not a de Polignac number, because 12133133233 - 2¹ = 12133133231 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12133133198 and 12133133207.

It is not an unprimeable number, because it can be changed into a prime (12133133231) 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, 466658958 + ... + 466658983.

It is an arithmetic number, because the mean of its divisors is an integer number (3266612797).

Almost surely, 2^12133133233 is an apocalyptic number.

12133133233 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12133133233 is a deficient number, since it is larger than the sum of its proper divisors (933317955).

12133133233 is an equidigital number, since it uses as much as digits as its factorization.

12133133233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933317954.

The product of its digits is 2916, while the sum is 25.

Adding to 12133133233 its reverse (33233133121), we get a palindrome (45366266354).

The spelling of 12133133233 in words is "twelve billion, one hundred thirty-three million, one hundred thirty-three thousand, two hundred thirty-three".