11528203911137 has 2 divisors, whose sum is σ = 11528203911138. Its totient is φ = 11528203911136.

The previous prime is 11528203911067. The next prime is 11528203911221. The reversal of 11528203911137 is 73111930282511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6048653278801 + 5479550632336 = 2459401^2 + 2340844^2 .

It is an emirp because it is prime and its reverse (73111930282511) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11528203911137 is a prime.

It is not a weakly prime, because it can be changed into another prime (11528293911137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5764101955568 + 5764101955569.

It is an arithmetic number, because the mean of its divisors is an integer number (5764101955569).

Almost surely, 2^{11528203911137} is an apocalyptic number.

It is an amenable number.

11528203911137 is a deficient number, since it is larger than the sum of its proper divisors (1).

11528203911137 is an equidigital number, since it uses as much as digits as its factorization.

11528203911137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 44.

The spelling of 11528203911137 in words is "eleven trillion, five hundred twenty-eight billion, two hundred three million, nine hundred eleven thousand, one hundred thirty-seven".