12056947187 has 2 divisors, whose sum is σ = 12056947188. Its totient is φ = 12056947186.

The previous prime is 12056947159. The next prime is 12056947207. The reversal of 12056947187 is 78174965021.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12056947187 - 2¹⁰ = 12056946163 is a prime.

It is not a weakly prime, because it can be changed into another prime (12056947127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6028473593 + 6028473594.

It is an arithmetic number, because the mean of its divisors is an integer number (6028473594).

Almost surely, 2^12056947187 is an apocalyptic number.

12056947187 is a deficient number, since it is larger than the sum of its proper divisors (1).

12056947187 is an equidigital number, since it uses as much as digits as its factorization.

12056947187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 846720, while the sum is 50.

The spelling of 12056947187 in words is "twelve billion, fifty-six million, nine hundred forty-seven thousand, one hundred eighty-seven".