11011132511 has 2 divisors, whose sum is σ = 11011132512. Its totient is φ = 11011132510.

The previous prime is 11011132499. The next prime is 11011132591. The reversal of 11011132511 is 11523111011.

It is a weak prime.

It is an emirp because it is prime and its reverse (11523111011) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11011132511 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11011132511.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11011132591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505566255 + 5505566256.

It is an arithmetic number, because the mean of its divisors is an integer number (5505566256).

Almost surely, 2^11011132511 is an apocalyptic number.

11011132511 is a deficient number, since it is larger than the sum of its proper divisors (1).

11011132511 is an equidigital number, since it uses as much as digits as its factorization.

11011132511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30, while the sum is 17.

Adding to 11011132511 its reverse (11523111011), we get a palindrome (22534243522).

The spelling of 11011132511 in words is "eleven billion, eleven million, one hundred thirty-two thousand, five hundred eleven".