11500365128 has 32 divisors (see below), whose sum is σ = 24940560960. Its totient is φ = 4869343680.

The previous prime is 11500365119. The next prime is 11500365143. The reversal of 11500365128 is 82156300511.

11500365128 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 11500365094 and 11500365103.

It is an unprimeable number.

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, 1232483 + ... + 1241778.

It is an arithmetic number, because the mean of its divisors is an integer number (779392530).

Almost surely, 2^11500365128 is an apocalyptic number.

It is an amenable number.

11500365128 is an abundant number, since it is smaller than the sum of its proper divisors (13440195832).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11500365128 is a wasteful number, since it uses less digits than its factorization.

11500365128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2474357 (or 2474353 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 32.

Adding to 11500365128 its reverse (82156300511), we get a palindrome (93656665639).

The spelling of 11500365128 in words is "eleven billion, five hundred million, three hundred sixty-five thousand, one hundred twenty-eight".