11287131576 has 96 divisors (see below), whose sum is σ = 33588339840. Its totient is φ = 3149883072.

The previous prime is 11287131553. The next prime is 11287131587. The reversal of 11287131576 is 67513178211.

11287131576 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61036 + ... + 162171.

It is an arithmetic number, because the mean of its divisors is an integer number (349878540).

Almost surely, 2^11287131576 is an apocalyptic number.

It is an amenable number.

11287131576 is an abundant number, since it is smaller than the sum of its proper divisors (22301208264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11287131576 is a wasteful number, since it uses less digits than its factorization.

11287131576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223273 (or 223262 counting only the distinct ones).

The product of its digits is 70560, while the sum is 42.

The spelling of 11287131576 in words is "eleven billion, two hundred eighty-seven million, one hundred thirty-one thousand, five hundred seventy-six".