11521135271 has 2 divisors, whose sum is σ = 11521135272. Its totient is φ = 11521135270.

The previous prime is 11521135267. The next prime is 11521135303. The reversal of 11521135271 is 17253112511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11521135271 - 2² = 11521135267 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11521735271) by changing a digit.

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 as a sum of consecutive naturals, namely, 5760567635 + 5760567636.

It is an arithmetic number, because the mean of its divisors is an integer number (5760567636).

Almost surely, 2^11521135271 is an apocalyptic number.

11521135271 is a deficient number, since it is larger than the sum of its proper divisors (1).

11521135271 is an equidigital number, since it uses as much as digits as its factorization.

11521135271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2100, while the sum is 29.

Adding to 11521135271 its reverse (17253112511), we get a palindrome (28774247782).

The spelling of 11521135271 in words is "eleven billion, five hundred twenty-one million, one hundred thirty-five thousand, two hundred seventy-one".