12111445241 has 16 divisors (see below), whose sum is σ = 14144492544. Its totient is φ = 10156539024.

The previous prime is 12111445237. The next prime is 12111445243. The reversal of 12111445241 is 14254411121.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12111445241 - 2² = 12111445237 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12111445241.

It is not an unprimeable number, because it can be changed into a prime (12111445243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41351 + ... + 161036.

It is an arithmetic number, because the mean of its divisors is an integer number (884030784).

Almost surely, 2^12111445241 is an apocalyptic number.

It is an amenable number.

12111445241 is a deficient number, since it is larger than the sum of its proper divisors (2033047303).

12111445241 is a wasteful number, since it uses less digits than its factorization.

12111445241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202580.

The product of its digits is 1280, while the sum is 26.

Adding to 12111445241 its reverse (14254411121), we get a palindrome (26365856362).

The spelling of 12111445241 in words is "twelve billion, one hundred eleven million, four hundred forty-five thousand, two hundred forty-one".