11020091128 has 32 divisors (see below), whose sum is σ = 21307253760. Its totient is φ = 5340434400.

The previous prime is 11020091111. The next prime is 11020091171. The reversal of 11020091128 is 82119002011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103548 + ... + 181003.

It is an arithmetic number, because the mean of its divisors is an integer number (665851680).

Almost surely, 2^11020091128 is an apocalyptic number.

It is an amenable number.

11020091128 is a deficient number, since it is larger than the sum of its proper divisors (10287162632).

11020091128 is a wasteful number, since it uses less digits than its factorization.

11020091128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284707 (or 284703 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 25.

Adding to 11020091128 its reverse (82119002011), we get a palindrome (93139093139).

The spelling of 11020091128 in words is "eleven billion, twenty million, ninety-one thousand, one hundred twenty-eight".