12118356943 has 12 divisors (see below), whose sum is σ = 15378397992. Its totient is φ = 9442875120.

The previous prime is 12118356889. The next prime is 12118356949. The reversal of 12118356943 is 34965381121.

It is not a de Polignac number, because 12118356943 - 2⁹ = 12118356431 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 12118356943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12118356949) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11240980 + ... + 11242057.

It is an arithmetic number, because the mean of its divisors is an integer number (1281533166).

Almost surely, 2^12118356943 is an apocalyptic number.

12118356943 is a deficient number, since it is larger than the sum of its proper divisors (3260041049).

12118356943 is a wasteful number, since it uses less digits than its factorization.

12118356943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22483062 (or 22483055 counting only the distinct ones).

The product of its digits is 155520, while the sum is 43.

The spelling of 12118356943 in words is "twelve billion, one hundred eighteen million, three hundred fifty-six thousand, nine hundred forty-three".