11153530205 has 16 divisors (see below), whose sum is σ = 13600936560. Its totient is φ = 8778958848.

The previous prime is 11153530183. The next prime is 11153530217. The reversal of 11153530205 is 50203535111.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 2568766489 + 8584763716 = 50683^2 + 92654^2 .

It is a cyclic number.

It is not a de Polignac number, because 11153530205 - 2¹⁰ = 11153529181 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111929 + ... + 186641.

It is an arithmetic number, because the mean of its divisors is an integer number (850058535).

Almost surely, 2^11153530205 is an apocalyptic number.

It is an amenable number.

11153530205 is a deficient number, since it is larger than the sum of its proper divisors (2447406355).

11153530205 is an equidigital number, since it uses as much as digits as its factorization.

11153530205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75200.

The product of its (nonzero) digits is 2250, while the sum is 26.

The spelling of 11153530205 in words is "eleven billion, one hundred fifty-three million, five hundred thirty thousand, two hundred five".