12111056041 has 6 divisors (see below), whose sum is σ = 14088371370. Its totient is φ = 10380905136.

The previous prime is 12111056017. The next prime is 12111056063. The reversal of 12111056041 is 14065011121.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11150304025 + 960752016 = 105595^2 + 30996^2 .

It is not a de Polignac number, because 12111056041 - 2²³ = 12102667433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12111050041) 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, 123582156 + ... + 123582253.

It is an arithmetic number, because the mean of its divisors is an integer number (2348061895).

Almost surely, 2^12111056041 is an apocalyptic number.

It is an amenable number.

12111056041 is a deficient number, since it is larger than the sum of its proper divisors (1977315329).

12111056041 is an equidigital number, since it uses as much as digits as its factorization.

12111056041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247164423 (or 247164416 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 22.

Adding to 12111056041 its reverse (14065011121), we get a palindrome (26176067162).

The spelling of 12111056041 in words is "twelve billion, one hundred eleven million, fifty-six thousand, forty-one".