11011132591 has 2 divisors, whose sum is σ = 11011132592. Its totient is φ = 11011132590.

The previous prime is 11011132511. The next prime is 11011132603. The reversal of 11011132591 is 19523111011.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11011132591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11011132511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505566295 + 5505566296.

It is an arithmetic number, because the mean of its divisors is an integer number (5505566296).

Almost surely, 2^11011132591 is an apocalyptic number.

11011132591 is a deficient number, since it is larger than the sum of its proper divisors (1).

11011132591 is an equidigital number, since it uses as much as digits as its factorization.

11011132591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 270, while the sum is 25.

The spelling of 11011132591 in words is "eleven billion, eleven million, one hundred thirty-two thousand, five hundred ninety-one".