11128281487 has 2 divisors, whose sum is σ = 11128281488. Its totient is φ = 11128281486.

The previous prime is 11128281469. The next prime is 11128281491. The reversal of 11128281487 is 78418282111.

11128281487 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11128281487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11128281407) 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 as a sum of consecutive naturals, namely, 5564140743 + 5564140744.

It is an arithmetic number, because the mean of its divisors is an integer number (5564140744).

Almost surely, 2^11128281487 is an apocalyptic number.

11128281487 is a deficient number, since it is larger than the sum of its proper divisors (1).

11128281487 is an equidigital number, since it uses as much as digits as its factorization.

11128281487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 57344, while the sum is 43.

The spelling of 11128281487 in words is "eleven billion, one hundred twenty-eight million, two hundred eighty-one thousand, four hundred eighty-seven".