12171570011 has 2 divisors, whose sum is σ = 12171570012. Its totient is φ = 12171570010.

The previous prime is 12171569933. The next prime is 12171570029. The reversal of 12171570011 is 11007517121.

It is a strong prime.

It is an emirp because it is prime and its reverse (11007517121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12171570011 - 2¹⁰ = 12171568987 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (12171570071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6085785005 + 6085785006.

It is an arithmetic number, because the mean of its divisors is an integer number (6085785006).

Almost surely, 2^12171570011 is an apocalyptic number.

12171570011 is a deficient number, since it is larger than the sum of its proper divisors (1).

12171570011 is an equidigital number, since it uses as much as digits as its factorization.

12171570011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 490, while the sum is 26.

The spelling of 12171570011 in words is "twelve billion, one hundred seventy-one million, five hundred seventy thousand, eleven".