11132531171 has 16 divisors (see below), whose sum is σ = 11664714720. Its totient is φ = 10616728320.

The previous prime is 11132531159. The next prime is 11132531173. The reversal of 11132531171 is 17113523111.

It is a cyclic number.

It is not a de Polignac number, because 11132531171 - 2²⁶ = 11065422307 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11132531171.

It is not an unprimeable number, because it can be changed into a prime (11132531173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 241541 + ... + 283913.

It is an arithmetic number, because the mean of its divisors is an integer number (729044670).

Almost surely, 2^11132531171 is an apocalyptic number.

11132531171 is a deficient number, since it is larger than the sum of its proper divisors (532183549).

11132531171 is an equidigital number, since it uses as much as digits as its factorization.

11132531171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42566.

The product of its digits is 630, while the sum is 26.

The spelling of 11132531171 in words is "eleven billion, one hundred thirty-two million, five hundred thirty-one thousand, one hundred seventy-one".