12111647308 has 12 divisors (see below), whose sum is σ = 21203101080. Its totient is φ = 6053618432.

The previous prime is 12111647239. The next prime is 12111647309. The reversal of 12111647308 is 80374611121.

It is not an unprimeable number, because it can be changed into a prime (12111647309) 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, 538918 + ... + 560941.

It is an arithmetic number, because the mean of its divisors is an integer number (1766925090).

Almost surely, 2^12111647308 is an apocalyptic number.

It is an amenable number.

12111647308 is a deficient number, since it is larger than the sum of its proper divisors (9091453772).

12111647308 is a wasteful number, since it uses less digits than its factorization.

12111647308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102616 (or 1102614 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 34.

The spelling of 12111647308 in words is "twelve billion, one hundred eleven million, six hundred forty-seven thousand, three hundred eight".