11056531053 has 16 divisors (see below), whose sum is σ = 15527966720. Its totient is φ = 6978559536.

The previous prime is 11056531033. The next prime is 11056531103. The reversal of 11056531053 is 35013565011.

It is not a de Polignac number, because 11056531053 - 2¹⁶ = 11056465517 is a prime.

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 11056531053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11056531033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27426 + ... + 151212.

It is an arithmetic number, because the mean of its divisors is an integer number (970497920).

Almost surely, 2^11056531053 is an apocalyptic number.

It is an amenable number.

11056531053 is a deficient number, since it is larger than the sum of its proper divisors (4471435667).

11056531053 is a wasteful number, since it uses less digits than its factorization.

11056531053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125376.

The product of its (nonzero) digits is 6750, while the sum is 30.

The spelling of 11056531053 in words is "eleven billion, fifty-six million, five hundred thirty-one thousand, fifty-three".