11289521247 has 8 divisors (see below), whose sum is σ = 15053187120. Its totient is φ = 7526101440.

The previous prime is 11289521233. The next prime is 11289521281. The reversal of 11289521247 is 74212598211.

11289521247 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 not a de Polignac number, because 11289521247 - 2¹⁵ = 11289488479 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11289521199 and 11289521208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11289521207) 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, 137779 + ... + 203867.

It is an arithmetic number, because the mean of its divisors is an integer number (1881648390).

Almost surely, 2^11289521247 is an apocalyptic number.

11289521247 is a deficient number, since it is larger than the sum of its proper divisors (3763665873).

11289521247 is an equidigital number, since it uses as much as digits as its factorization.

11289521247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123033.

The product of its digits is 80640, while the sum is 42.

The spelling of 11289521247 in words is "eleven billion, two hundred eighty-nine million, five hundred twenty-one thousand, two hundred forty-seven".