12040213117 has 2 divisors, whose sum is σ = 12040213118. Its totient is φ = 12040213116.

The previous prime is 12040213033. The next prime is 12040213169. The reversal of 12040213117 is 71131204021.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11054629881 + 985583236 = 105141^2 + 31394^2 .

It is a cyclic number.

It is not a de Polignac number, because 12040213117 - 2¹¹ = 12040211069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12040213177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6020106558 + 6020106559.

It is an arithmetic number, because the mean of its divisors is an integer number (6020106559).

Almost surely, 2^12040213117 is an apocalyptic number.

It is an amenable number.

12040213117 is a deficient number, since it is larger than the sum of its proper divisors (1).

12040213117 is an equidigital number, since it uses as much as digits as its factorization.

12040213117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 22.

Adding to 12040213117 its reverse (71131204021), we get a palindrome (83171417138).

The spelling of 12040213117 in words is "twelve billion, forty million, two hundred thirteen thousand, one hundred seventeen".