11521030041 has 6 divisors (see below), whose sum is σ = 16641487850. Its totient is φ = 7680686688.

The previous prime is 11521029979. The next prime is 11521030043. The reversal of 11521030041 is 14003012511.

11521030041 is a `hidden beast` number, since 115 + 210 + 300 + 41 = 666.

It can be written as a sum of positive squares in only one way, i.e., 9879564816 + 1641465225 = 99396^2 + 40515^2 .

It is not a de Polignac number, because 11521030041 - 2⁹ = 11521029529 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11521029996 and 11521030023.

It is not an unprimeable number, because it can be changed into a prime (11521030043) 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, 640057216 + ... + 640057233.

Almost surely, 2^11521030041 is an apocalyptic number.

It is an amenable number.

11521030041 is a deficient number, since it is larger than the sum of its proper divisors (5120457809).

11521030041 is a wasteful number, since it uses less digits than its factorization.

11521030041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1280114455 (or 1280114452 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

Adding to 11521030041 its reverse (14003012511), we get a palindrome (25524042552).

The spelling of 11521030041 in words is "eleven billion, five hundred twenty-one million, thirty thousand, forty-one".