12013134441 has 24 divisors (see below), whose sum is σ = 20326493664. Its totient is φ = 6240588480.

The previous prime is 12013134437. The next prime is 12013134443. The reversal of 12013134441 is 14443131021.

It is not a de Polignac number, because 12013134441 - 2² = 12013134437 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12013134443) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3713020 + ... + 3716253.

It is an arithmetic number, because the mean of its divisors is an integer number (846937236).

Almost surely, 2^12013134441 is an apocalyptic number.

12013134441 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12013134441 is a deficient number, since it is larger than the sum of its proper divisors (8313359223).

12013134441 is a wasteful number, since it uses less digits than its factorization.

12013134441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7429301 (or 7429294 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 12013134441 its reverse (14443131021), we get a palindrome (26456265462).

The spelling of 12013134441 in words is "twelve billion, thirteen million, one hundred thirty-four thousand, four hundred forty-one".