11011001111056 has 20 divisors (see below), whose sum is σ = 21333917772652. Its totient is φ = 5505473943936.

The previous prime is 11011001111039. The next prime is 11011001111093. The reversal of 11011001111056 is 65011110011011.

It can be written as a sum of positive squares in 2 ways, for example, as 5741295210000 + 5269705901056 = 2396100^2 + 2295584^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1994050 + ... + 5098846.

Almost surely, 2^{11011001111056} is an apocalyptic number.

11011001111056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11011001111056 is a deficient number, since it is larger than the sum of its proper divisors (10322916661596).

11011001111056 is a wasteful number, since it uses less digits than its factorization.

11011001111056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3326458 (or 3326452 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 19.

Adding to 11011001111056 its reverse (65011110011011), we get a palindrome (76022111122067).

The spelling of 11011001111056 in words is "eleven trillion, eleven billion, one million, one hundred eleven thousand, fifty-six".