11215045028 has 24 divisors (see below), whose sum is σ = 21413929824. Its totient is φ = 5096940800.

The previous prime is 11215045021. The next prime is 11215045063. The reversal of 11215045028 is 82054051211.

It is not an unprimeable number, because it can be changed into a prime (11215045021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 328751 + ... + 361257.

It is an arithmetic number, because the mean of its divisors is an integer number (892247076).

Almost surely, 2^11215045028 is an apocalyptic number.

It is an amenable number.

11215045028 is a deficient number, since it is larger than the sum of its proper divisors (10198884796).

11215045028 is a wasteful number, since it uses less digits than its factorization.

11215045028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40363 (or 40361 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 29.

Adding to 11215045028 its reverse (82054051211), we get a palindrome (93269096239).

The spelling of 11215045028 in words is "eleven billion, two hundred fifteen million, forty-five thousand, twenty-eight".