11520545441 has 8 divisors (see below), whose sum is σ = 11881426560. Its totient is φ = 11162270448.

The previous prime is 11520545429. The next prime is 11520545467. The reversal of 11520545441 is 14454502511.

It is a happy number.

11520545441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11520545441 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11520545398 and 11520545407.

It is not an unprimeable number, because it can be changed into a prime (11520545401) 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 7 ways as a sum of consecutive naturals, for example, 642551 + ... + 660236.

It is an arithmetic number, because the mean of its divisors is an integer number (1485178320).

Almost surely, 2^11520545441 is an apocalyptic number.

It is an amenable number.

11520545441 is a deficient number, since it is larger than the sum of its proper divisors (360881119).

11520545441 is a wasteful number, since it uses less digits than its factorization.

11520545441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1303063.

The product of its (nonzero) digits is 16000, while the sum is 32.

The spelling of 11520545441 in words is "eleven billion, five hundred twenty million, five hundred forty-five thousand, four hundred forty-one".