11528203911169 has 12 divisors (see below), whose sum is σ = 12671642119248. Its totient is φ = 10480065235640.

The previous prime is 11528203911137. The next prime is 11528203911221. The reversal of 11528203911169 is 96111930282511.

It is not a de Polignac number, because 11528203911169 - 2⁵ = 11528203911137 is a prime.

It is a super-2 number, since 2×11528203911169² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11528203951169) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11069682 + ... + 12066244.

It is an arithmetic number, because the mean of its divisors is an integer number (1055970176604).

Almost surely, 2^{11528203911169} is an apocalyptic number.

It is an amenable number.

11528203911169 is a deficient number, since it is larger than the sum of its proper divisors (1143438208079).

11528203911169 is an equidigital number, since it uses as much as digits as its factorization.

11528203911169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1092188 (or 1092177 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 49.

The spelling of 11528203911169 in words is "eleven trillion, five hundred twenty-eight billion, two hundred three million, nine hundred eleven thousand, one hundred sixty-nine".