11111125041 has 24 divisors (see below), whose sum is σ = 16196317800. Its totient is φ = 7339852800.

The previous prime is 11111125037. The next prime is 11111125093. The reversal of 11111125041 is 14052111111.

It can be written as a sum of positive squares in 4 ways, for example, as 231800625 + 10879324416 = 15225^2 + 104304^2 .

It is not a de Polignac number, because 11111125041 - 2² = 11111125037 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11111125021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 554721 + ... + 574401.

It is an arithmetic number, because the mean of its divisors is an integer number (674846575).

Almost surely, 2^11111125041 is an apocalyptic number.

It is an amenable number.

11111125041 is a deficient number, since it is larger than the sum of its proper divisors (5085192759).

11111125041 is a wasteful number, since it uses less digits than its factorization.

11111125041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20257 (or 20254 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 18.

Adding to 11111125041 its reverse (14052111111), we get a palindrome (25163236152).

The spelling of 11111125041 in words is "eleven billion, one hundred eleven million, one hundred twenty-five thousand, forty-one".