11161200171533 has 2 divisors, whose sum is σ = 11161200171534. Its totient is φ = 11161200171532.

The previous prime is 11161200171497. The next prime is 11161200171593. The reversal of 11161200171533 is 33517100216111.

11161200171533 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11115642684169 + 45557487364 = 3334013^2 + 213442^2 .

It is an emirp because it is prime and its reverse (33517100216111) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11161200171533 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11161200171533.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11161200171593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5580600085766 + 5580600085767.

It is an arithmetic number, because the mean of its divisors is an integer number (5580600085767).

Almost surely, 2^{11161200171533} is an apocalyptic number.

It is an amenable number.

11161200171533 is a deficient number, since it is larger than the sum of its proper divisors (1).

11161200171533 is an equidigital number, since it uses as much as digits as its factorization.

11161200171533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3780, while the sum is 32.

Adding to 11161200171533 its reverse (33517100216111), we get a palindrome (44678300387644).

The spelling of 11161200171533 in words is "eleven trillion, one hundred sixty-one billion, two hundred million, one hundred seventy-one thousand, five hundred thirty-three".