12133881123 has 48 divisors (see below), whose sum is σ = 20370067200. Its totient is φ = 6367927104.

The previous prime is 12133881107. The next prime is 12133881131. The reversal of 12133881123 is 32118833121.

It is a happy number.

12133881123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12133881123 - 2⁴ = 12133881107 is a prime.

It is a super-2 number, since 2×12133881123² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12133881143) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 364336 + ... + 396242.

It is an arithmetic number, because the mean of its divisors is an integer number (424376400).

Almost surely, 2^12133881123 is an apocalyptic number.

12133881123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12133881123 is a deficient number, since it is larger than the sum of its proper divisors (8236186077).

12133881123 is a wasteful number, since it uses less digits than its factorization.

12133881123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32136 (or 32129 counting only the distinct ones).

The product of its digits is 6912, while the sum is 33.

The spelling of 12133881123 in words is "twelve billion, one hundred thirty-three million, eight hundred eighty-one thousand, one hundred twenty-three".