11481248521 has 8 divisors (see below), whose sum is σ = 11657373920. Its totient is φ = 11305632672.

The previous prime is 11481248489. The next prime is 11481248549. The reversal of 11481248521 is 12584218411.

11481248521 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 not a de Polignac number, because 11481248521 - 2⁵ = 11481248489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11481248561) 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, 81855 + ... + 172228.

It is an arithmetic number, because the mean of its divisors is an integer number (1457171740).

Almost surely, 2^11481248521 is an apocalyptic number.

It is an amenable number.

11481248521 is a deficient number, since it is larger than the sum of its proper divisors (176125399).

11481248521 is an equidigital number, since it uses as much as digits as its factorization.

11481248521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254775.

The product of its digits is 20480, while the sum is 37.

The spelling of 11481248521 in words is "eleven billion, four hundred eighty-one million, two hundred forty-eight thousand, five hundred twenty-one".