11143109987 has 8 divisors (see below), whose sum is σ = 11861384400. Its totient is φ = 10438015104.

The previous prime is 11143109983. The next prime is 11143110007. The reversal of 11143109987 is 78990134111.

11143109987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11143109987 - 2² = 11143109983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11143109983) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3293138 + ... + 3296519.

It is an arithmetic number, because the mean of its divisors is an integer number (1482673050).

Almost surely, 2^11143109987 is an apocalyptic number.

11143109987 is a deficient number, since it is larger than the sum of its proper divisors (718274413).

11143109987 is an equidigital number, since it uses as much as digits as its factorization.

11143109987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6589765.

The product of its (nonzero) digits is 54432, while the sum is 44.

The spelling of 11143109987 in words is "eleven billion, one hundred forty-three million, one hundred nine thousand, nine hundred eighty-seven".