12541115133 has 6 divisors (see below), whose sum is σ = 18114944094. Its totient is φ = 8360743416.

The previous prime is 12541115123. The next prime is 12541115161. The reversal of 12541115133 is 33151114521.

12541115133 is a `hidden beast` number, since 1 + 2 + 541 + 115 + 1 + 3 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11899100889 + 642014244 = 109083^2 + 25338^2 .

It is not a de Polignac number, because 12541115133 - 2⁴ = 12541115117 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12541115097 and 12541115106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12541115113) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 696728610 + ... + 696728627.

It is an arithmetic number, because the mean of its divisors is an integer number (3019157349).

Almost surely, 2^12541115133 is an apocalyptic number.

It is an amenable number.

12541115133 is a deficient number, since it is larger than the sum of its proper divisors (5573828961).

12541115133 is a wasteful number, since it uses less digits than its factorization.

12541115133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1393457243 (or 1393457240 counting only the distinct ones).

The product of its digits is 1800, while the sum is 27.

Adding to 12541115133 its reverse (33151114521), we get a palindrome (45692229654).

The spelling of 12541115133 in words is "twelve billion, five hundred forty-one million, one hundred fifteen thousand, one hundred thirty-three".