10823075521 has 4 divisors (see below), whose sum is σ = 10823922772. Its totient is φ = 10822228272.

The previous prime is 10823075519. The next prime is 10823075537. The reversal of 10823075521 is 12557032801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12557032801 = 78179 ⋅160619.

It can be written as a sum of positive squares in 2 ways, for example, as 4965316225 + 5857759296 = 70465^2 + 76536^2 .

It is a cyclic number.

It is not a de Polignac number, because 10823075521 - 2¹ = 10823075519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10823075561) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 404166 + ... + 430111.

It is an arithmetic number, because the mean of its divisors is an integer number (2705980693).

Almost surely, 2^10823075521 is an apocalyptic number.

It is an amenable number.

10823075521 is a deficient number, since it is larger than the sum of its proper divisors (847251).

10823075521 is an equidigital number, since it uses as much as digits as its factorization.

10823075521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847250.

The product of its (nonzero) digits is 16800, while the sum is 34.

The spelling of 10823075521 in words is "ten billion, eight hundred twenty-three million, seventy-five thousand, five hundred twenty-one".