11518031028 has 48 divisors (see below), whose sum is σ = 31705554944. Its totient is φ = 3184708320.

The previous prime is 11518031017. The next prime is 11518031071. The reversal of 11518031028 is 82013081511.

11518031028 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 = 11518030986 and 11518031004.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 2209000 + ... + 2214207.

Almost surely, 2^11518031028 is an apocalyptic number.

It is an amenable number.

11518031028 is an abundant number, since it is smaller than the sum of its proper divisors (20187523916).

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

11518031028 is a wasteful number, since it uses less digits than its factorization.

11518031028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4423252 (or 4423250 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 30.

The spelling of 11518031028 in words is "eleven billion, five hundred eighteen million, thirty-one thousand, twenty-eight".