12405665141 has 2 divisors, whose sum is σ = 12405665142. Its totient is φ = 12405665140.

The previous prime is 12405665113. The next prime is 12405665143. The reversal of 12405665141 is 14156650421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12093400900 + 312264241 = 109970^2 + 17671^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12405665141 is a prime.

Together with 12405665143, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12405665143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6202832570 + 6202832571.

It is an arithmetic number, because the mean of its divisors is an integer number (6202832571).

Almost surely, 2^12405665141 is an apocalyptic number.

It is an amenable number.

12405665141 is a deficient number, since it is larger than the sum of its proper divisors (1).

12405665141 is an equidigital number, since it uses as much as digits as its factorization.

12405665141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28800, while the sum is 35.

The spelling of 12405665141 in words is "twelve billion, four hundred five million, six hundred sixty-five thousand, one hundred forty-one".