11056311205 has 16 divisors (see below), whose sum is σ = 13317511680. Its totient is φ = 8811811008.

The previous prime is 11056311193. The next prime is 11056311229. The reversal of 11056311205 is 50211365011.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11056311205 - 2²¹ = 11054214053 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11056311205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2091756 + ... + 2097034.

It is an arithmetic number, because the mean of its divisors is an integer number (832344480).

Almost surely, 2^11056311205 is an apocalyptic number.

It is an amenable number.

11056311205 is a deficient number, since it is larger than the sum of its proper divisors (2261200475).

11056311205 is a wasteful number, since it uses less digits than its factorization.

11056311205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6780.

The product of its (nonzero) digits is 900, while the sum is 25.

Adding to 11056311205 its reverse (50211365011), we get a palindrome (61267676216).

The spelling of 11056311205 in words is "eleven billion, fifty-six million, three hundred eleven thousand, two hundred five".