11113309558887 has 16 divisors (see below), whose sum is σ = 15162563581440. Its totient is φ = 7236469259712.

The previous prime is 11113309558759. The next prime is 11113309558891. The reversal of 11113309558887 is 78885590331111.

11113309558887 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11113309558887 - 2⁷ = 11113309558759 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11113309558887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11113309558387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8919963 + ... + 10089219.

It is an arithmetic number, because the mean of its divisors is an integer number (947660223840).

Almost surely, 2^{11113309558887} is an apocalyptic number.

11113309558887 is a deficient number, since it is larger than the sum of its proper divisors (4049254022553).

11113309558887 is a wasteful number, since it uses less digits than its factorization.

11113309558887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1242982.

The product of its (nonzero) digits is 7257600, while the sum is 60.

Adding to 11113309558887 its reverse (78885590331111), we get a palindrome (89998899889998).

The spelling of 11113309558887 in words is "eleven trillion, one hundred thirteen billion, three hundred nine million, five hundred fifty-eight thousand, eight hundred eighty-seven".