12141242261 has 2 divisors, whose sum is σ = 12141242262. Its totient is φ = 12141242260.

The previous prime is 12141242237. The next prime is 12141242293. The reversal of 12141242261 is 16224214121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8015620900 + 4125621361 = 89530^2 + 64231^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12141242261 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12141242261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12141242161) 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, 6070621130 + 6070621131.

It is an arithmetic number, because the mean of its divisors is an integer number (6070621131).

Almost surely, 2^12141242261 is an apocalyptic number.

It is an amenable number.

12141242261 is a deficient number, since it is larger than the sum of its proper divisors (1).

12141242261 is an equidigital number, since it uses as much as digits as its factorization.

12141242261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1536, while the sum is 26.

Adding to 12141242261 its reverse (16224214121), we get a palindrome (28365456382).

The spelling of 12141242261 in words is "twelve billion, one hundred forty-one million, two hundred forty-two thousand, two hundred sixty-one".