12387981118 has 8 divisors (see below), whose sum is σ = 18598975848. Its totient is φ = 6188322504.

The previous prime is 12387981113. The next prime is 12387981131. The reversal of 12387981118 is 81118978321.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12387981113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2831296 + ... + 2835667.

It is an arithmetic number, because the mean of its divisors is an integer number (2324871981).

Almost surely, 2^12387981118 is an apocalyptic number.

12387981118 is a deficient number, since it is larger than the sum of its proper divisors (6210994730).

12387981118 is a wasteful number, since it uses less digits than its factorization.

12387981118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5668058.

The product of its digits is 193536, while the sum is 49.

The spelling of 12387981118 in words is "twelve billion, three hundred eighty-seven million, nine hundred eighty-one thousand, one hundred eighteen".