12133313155 has 4 divisors (see below), whose sum is σ = 14559975792. Its totient is φ = 9706650520.

The previous prime is 12133313149. The next prime is 12133313183. The reversal of 12133313155 is 55131333121.

It is a happy number.

12133313155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12133313155 - 2⁵ = 12133313123 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1213331311 + ... + 1213331320.

It is an arithmetic number, because the mean of its divisors is an integer number (3639993948).

Almost surely, 2^12133313155 is an apocalyptic number.

12133313155 is a deficient number, since it is larger than the sum of its proper divisors (2426662637).

12133313155 is an equidigital number, since it uses as much as digits as its factorization.

12133313155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2426662636.

The product of its digits is 4050, while the sum is 28.

Adding to 12133313155 its reverse (55131333121), we get a palindrome (67264646276).

The spelling of 12133313155 in words is "twelve billion, one hundred thirty-three million, three hundred thirteen thousand, one hundred fifty-five".