11187144812 has 48 divisors (see below), whose sum is σ = 20357568000. Its totient is φ = 5376146880.

The previous prime is 11187144811. The next prime is 11187144817. The reversal of 11187144812 is 21844178111.

It is not an unprimeable number, because it can be changed into a prime (11187144811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2191439 + ... + 2196537.

It is an arithmetic number, because the mean of its divisors is an integer number (424116000).

Almost surely, 2^11187144812 is an apocalyptic number.

It is an amenable number.

11187144812 is a deficient number, since it is larger than the sum of its proper divisors (9170423188).

11187144812 is a wasteful number, since it uses less digits than its factorization.

11187144812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5366 (or 5364 counting only the distinct ones).

The product of its digits is 14336, while the sum is 38.

The spelling of 11187144812 in words is "eleven billion, one hundred eighty-seven million, one hundred forty-four thousand, eight hundred twelve".