12047110956 has 18 divisors (see below), whose sum is σ = 30452419452. Its totient is φ = 4015703640.

The previous prime is 12047110927. The next prime is 12047110969. The reversal of 12047110956 is 65901174021.

12047110956 is a `hidden beast` number, since 120 + 471 + 10 + 9 + 56 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 334641971 = 12047110956 / (1 + 2 + 0 + 4 + 7 + 1 + 1 + 0 + 9 + 5 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 12047110956.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 167320950 + ... + 167321021.

Almost surely, 2^12047110956 is an apocalyptic number.

It is an amenable number.

12047110956 is an abundant number, since it is smaller than the sum of its proper divisors (18405308496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12047110956 is a wasteful number, since it uses less digits than its factorization.

12047110956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334641981 (or 334641976 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

Adding to 12047110956 its reverse (65901174021), we get a palindrome (77948284977).

The spelling of 12047110956 in words is "twelve billion, forty-seven million, one hundred ten thousand, nine hundred fifty-six".