11057072017 has 4 divisors (see below), whose sum is σ = 11707488036. Its totient is φ = 10406656000.

The previous prime is 11057072011. The next prime is 11057072029. The reversal of 11057072017 is 71027075011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7007531521 + 4049540496 = 83711^2 + 63636^2 .

It is a cyclic number.

It is not a de Polignac number, because 11057072017 - 2¹⁹ = 11056547729 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11057072017.

It is not an unprimeable number, because it can be changed into a prime (11057072011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 325207984 + ... + 325208017.

It is an arithmetic number, because the mean of its divisors is an integer number (2926872009).

Almost surely, 2^11057072017 is an apocalyptic number.

11057072017 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

11057072017 is a deficient number, since it is larger than the sum of its proper divisors (650416019).

11057072017 is an equidigital number, since it uses as much as digits as its factorization.

11057072017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650416018.

The product of its (nonzero) digits is 3430, while the sum is 31.

The spelling of 11057072017 in words is "eleven billion, fifty-seven million, seventy-two thousand, seventeen".