12441111541 has 2 divisors, whose sum is σ = 12441111542. Its totient is φ = 12441111540.

The previous prime is 12441111503. The next prime is 12441111559. The reversal of 12441111541 is 14511114421.

12441111541 = 78870² + 78871².

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6220634641 + 6220476900 = 78871^2 + 78870^2 .

It is a cyclic number.

It is not a de Polignac number, because 12441111541 - 2⁹ = 12441111029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12441111941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6220555770 + 6220555771.

It is an arithmetic number, because the mean of its divisors is an integer number (6220555771).

Almost surely, 2^12441111541 is an apocalyptic number.

12441111541 is the 78871-st centered square number.

It is an amenable number.

12441111541 is a deficient number, since it is larger than the sum of its proper divisors (1).

12441111541 is an equidigital number, since it uses as much as digits as its factorization.

12441111541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 640, while the sum is 25.

Adding to 12441111541 its reverse (14511114421), we get a palindrome (26952225962).

The spelling of 12441111541 in words is "twelve billion, four hundred forty-one million, one hundred eleven thousand, five hundred forty-one".