11522401271 has 2 divisors, whose sum is σ = 11522401272. Its totient is φ = 11522401270.

The previous prime is 11522401237. The next prime is 11522401337. The reversal of 11522401271 is 17210422511.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11522401271 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11522401271.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11522401571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5761200635 + 5761200636.

It is an arithmetic number, because the mean of its divisors is an integer number (5761200636).

Almost surely, 2^11522401271 is an apocalyptic number.

11522401271 is a deficient number, since it is larger than the sum of its proper divisors (1).

11522401271 is an equidigital number, since it uses as much as digits as its factorization.

11522401271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1120, while the sum is 26.

Adding to 11522401271 its reverse (17210422511), we get a palindrome (28732823782).

It can be divided in two parts, 1152240 and 1271, that added together give a palindrome (1153511).

The spelling of 11522401271 in words is "eleven billion, five hundred twenty-two million, four hundred one thousand, two hundred seventy-one".