11011050505 has 24 divisors (see below), whose sum is σ = 16351837632. Its totient is φ = 6969628224.

The previous prime is 11011050493. The next prime is 11011050529. The reversal of 11011050505 is 50505011011.

It is a happy number.

It is not a de Polignac number, because 11011050505 - 2²³ = 11002661897 is a prime.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 924859 + ... + 936688.

It is an arithmetic number, because the mean of its divisors is an integer number (681326568).

Almost surely, 2^11011050505 is an apocalyptic number.

It is an amenable number.

11011050505 is a deficient number, since it is larger than the sum of its proper divisors (5340787127).

11011050505 is a wasteful number, since it uses less digits than its factorization.

11011050505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1861585 (or 1861572 counting only the distinct ones).

The product of its (nonzero) digits is 125, while the sum is 19.

Adding to 11011050505 its reverse (50505011011), we get a palindrome (61516061516).

The spelling of 11011050505 in words is "eleven billion, eleven million, fifty thousand, five hundred five".