12013442431011 has 48 divisors (see below), whose sum is σ = 20724713458176. Its totient is φ = 6556596254208.

The previous prime is 12013442430967. The next prime is 12013442431019. The reversal of 12013442431011 is 11013424431021.

It is a happy number.

12013442431011 is a `hidden beast` number, since 1 + 2 + 0 + 1 + 344 + 2 + 4 + 310 + 1 + 1 = 666.

It is not a de Polignac number, because 12013442431011 - 2¹¹ = 12013442428963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12013442431019) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5184445 + ... + 7134798.

It is an arithmetic number, because the mean of its divisors is an integer number (431764863712).

Almost surely, 2^{12013442431011} is an apocalyptic number.

12013442431011 is a deficient number, since it is larger than the sum of its proper divisors (8711271027165).

12013442431011 is a wasteful number, since it uses less digits than its factorization.

12013442431011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12319952 (or 12319949 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

Adding to 12013442431011 its reverse (11013424431021), we get a palindrome (23026866862032).

The spelling of 12013442431011 in words is "twelve trillion, thirteen billion, four hundred forty-two million, four hundred thirty-one thousand, eleven".