11560243121 has 6 divisors (see below), whose sum is σ = 13447629810. Its totient is φ = 9908779776.

The previous prime is 11560243099. The next prime is 11560243133. The reversal of 11560243121 is 12134206511.

11560243121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 8765640625 + 2794602496 = 93625^2 + 52864^2 .

It is not a de Polignac number, because 11560243121 - 2²² = 11556048817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11560243621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 117961616 + ... + 117961713.

It is an arithmetic number, because the mean of its divisors is an integer number (2241271635).

Almost surely, 2^11560243121 is an apocalyptic number.

It is an amenable number.

11560243121 is a deficient number, since it is larger than the sum of its proper divisors (1887386689).

11560243121 is an equidigital number, since it uses as much as digits as its factorization.

11560243121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235923343 (or 235923336 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 11560243121 its reverse (12134206511), we get a palindrome (23694449632).

The spelling of 11560243121 in words is "eleven billion, five hundred sixty million, two hundred forty-three thousand, one hundred twenty-one".