12013118947 has 2 divisors, whose sum is σ = 12013118948. Its totient is φ = 12013118946.

The previous prime is 12013118927. The next prime is 12013118951. The reversal of 12013118947 is 74981131021.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12013118947 is a prime.

It is not a weakly prime, because it can be changed into another prime (12013118927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6006559473 + 6006559474.

It is an arithmetic number, because the mean of its divisors is an integer number (6006559474).

Almost surely, 2^12013118947 is an apocalyptic number.

12013118947 is a deficient number, since it is larger than the sum of its proper divisors (1).

12013118947 is an equidigital number, since it uses as much as digits as its factorization.

12013118947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 37.

Adding to 12013118947 its reverse (74981131021), we get a palindrome (86994249968).

The spelling of 12013118947 in words is "twelve billion, thirteen million, one hundred eighteen thousand, nine hundred forty-seven".