11501141121 has 48 divisors (see below), whose sum is σ = 17737200000. Its totient is φ = 7156283904.

The previous prime is 11501141023. The next prime is 11501141129. The reversal of 11501141121 is 12114110511.

11501141121 is a `hidden beast` number, since 1 + 1 + 501 + 1 + 41 + 121 = 666.

It is not a de Polignac number, because 11501141121 - 2¹¹ = 11501139073 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11501141094 and 11501141103.

It is not an unprimeable number, because it can be changed into a prime (11501141129) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15192675 + ... + 15193431.

It is an arithmetic number, because the mean of its divisors is an integer number (369525000).

Almost surely, 2^11501141121 is an apocalyptic number.

It is an amenable number.

11501141121 is a deficient number, since it is larger than the sum of its proper divisors (6236058879).

11501141121 is a wasteful number, since it uses less digits than its factorization.

11501141121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1478 (or 1475 counting only the distinct ones).

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

Adding to 11501141121 its reverse (12114110511), we get a palindrome (23615251632).

The spelling of 11501141121 in words is "eleven billion, five hundred one million, one hundred forty-one thousand, one hundred twenty-one".