12011121047 has 2 divisors, whose sum is σ = 12011121048. Its totient is φ = 12011121046.

The previous prime is 12011121013. The next prime is 12011121079. The reversal of 12011121047 is 74012111021.

It is a strong prime.

It is an emirp because it is prime and its reverse (74012111021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12011121047 - 2¹² = 12011116951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12011121097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6005560523 + 6005560524.

It is an arithmetic number, because the mean of its divisors is an integer number (6005560524).

Almost surely, 2^12011121047 is an apocalyptic number.

12011121047 is a deficient number, since it is larger than the sum of its proper divisors (1).

12011121047 is an equidigital number, since it uses as much as digits as its factorization.

12011121047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 20.

Adding to 12011121047 its reverse (74012111021), we get a palindrome (86023232068).

The spelling of 12011121047 in words is "twelve billion, eleven million, one hundred twenty-one thousand, forty-seven".