11010520145 has 4 divisors (see below), whose sum is σ = 13212624180. Its totient is φ = 8808416112.

The previous prime is 11010520117. The next prime is 11010520211. The reversal of 11010520145 is 54102501011.

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 4029583441 + 6980936704 = 63479^2 + 83552^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11010520145 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 3 ways as a sum of consecutive naturals, for example, 1101052010 + ... + 1101052019.

It is an arithmetic number, because the mean of its divisors is an integer number (3303156045).

Almost surely, 2^11010520145 is an apocalyptic number.

It is an amenable number.

11010520145 is a deficient number, since it is larger than the sum of its proper divisors (2202104035).

11010520145 is an equidigital number, since it uses as much as digits as its factorization.

11010520145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2202104034.

The product of its (nonzero) digits is 200, while the sum is 20.

The spelling of 11010520145 in words is "eleven billion, ten million, five hundred twenty thousand, one hundred forty-five".