11047542287 has 4 divisors (see below), whose sum is σ = 11051226576. Its totient is φ = 11043858000.

The previous prime is 11047542283. The next prime is 11047542299. The reversal of 11047542287 is 78224574011.

11047542287 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78224574011 = 73 ⋅1071569507.

It is a cyclic number.

It is not a de Polignac number, because 11047542287 - 2² = 11047542283 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11047542281) 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 3 ways as a sum of consecutive naturals, for example, 1837643 + ... + 1843644.

It is an arithmetic number, because the mean of its divisors is an integer number (2762806644).

Almost surely, 2^11047542287 is an apocalyptic number.

11047542287 is a deficient number, since it is larger than the sum of its proper divisors (3684289).

11047542287 is an equidigital number, since it uses as much as digits as its factorization.

11047542287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3684288.

The product of its (nonzero) digits is 125440, while the sum is 41.

The spelling of 11047542287 in words is "eleven billion, forty-seven million, five hundred forty-two thousand, two hundred eighty-seven".