12133025442 has 24 divisors (see below), whose sum is σ = 26304745116. Its totient is φ = 4041799776.

The previous prime is 12133025431. The next prime is 12133025507. The reversal of 12133025442 is 24452033121.

12133025442 is a `hidden beast` number, since 1 + 213 + 3 + 0 + 2 + 5 + 442 = 666.

12133025442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11942336961 + 190688481 = 109281^2 + 13809^2 .

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 11 ways as a sum of consecutive naturals, for example, 182293 + ... + 239784.

Almost surely, 2^12133025442 is an apocalyptic number.

12133025442 is an abundant number, since it is smaller than the sum of its proper divisors (14171719674).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12133025442 is a wasteful number, since it uses less digits than its factorization.

12133025442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423682 (or 423679 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 12133025442 its reverse (24452033121), we get a palindrome (36585058563).

The spelling of 12133025442 in words is "twelve billion, one hundred thirty-three million, twenty-five thousand, four hundred forty-two".