11163524621 has 2 divisors, whose sum is σ = 11163524622. Its totient is φ = 11163524620.

The previous prime is 11163524591. The next prime is 11163524627. The reversal of 11163524621 is 12642536111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9489487396 + 1674037225 = 97414^2 + 40915^2 .

It is an emirp because it is prime and its reverse (12642536111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11163524621 - 2¹⁰ = 11163523597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11163524627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5581762310 + 5581762311.

It is an arithmetic number, because the mean of its divisors is an integer number (5581762311).

Almost surely, 2^11163524621 is an apocalyptic number.

It is an amenable number.

11163524621 is a deficient number, since it is larger than the sum of its proper divisors (1).

11163524621 is an equidigital number, since it uses as much as digits as its factorization.

11163524621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 32.

The spelling of 11163524621 in words is "eleven billion, one hundred sixty-three million, five hundred twenty-four thousand, six hundred twenty-one".