11263236755521 has 2 divisors, whose sum is σ = 11263236755522. Its totient is φ = 11263236755520.

The previous prime is 11263236755479. The next prime is 11263236755587. The reversal of 11263236755521 is 12555763236211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11233122012225 + 30114743296 = 3351585^2 + 173536^2 .

It is a cyclic number.

It is not a de Polignac number, because 11263236755521 - 2²¹ = 11263234658369 is a prime.

It is not a weakly prime, because it can be changed into another prime (11263236753521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5631618377760 + 5631618377761.

It is an arithmetic number, because the mean of its divisors is an integer number (5631618377761).

Almost surely, 2^{11263236755521} is an apocalyptic number.

It is an amenable number.

11263236755521 is a deficient number, since it is larger than the sum of its proper divisors (1).

11263236755521 is an equidigital number, since it uses as much as digits as its factorization.

11263236755521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2268000, while the sum is 49.

The spelling of 11263236755521 in words is "eleven trillion, two hundred sixty-three billion, two hundred thirty-six million, seven hundred fifty-five thousand, five hundred twenty-one".