12042121141 has 2 divisors, whose sum is σ = 12042121142. Its totient is φ = 12042121140.

The previous prime is 12042121129. The next prime is 12042121171. The reversal of 12042121141 is 14112124021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7937028100 + 4105093041 = 89090^2 + 64071^2 .

It is an emirp because it is prime and its reverse (14112124021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12042121141 - 2¹¹ = 12042119093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12042121171) 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, 6021060570 + 6021060571.

It is an arithmetic number, because the mean of its divisors is an integer number (6021060571).

Almost surely, 2^12042121141 is an apocalyptic number.

It is an amenable number.

12042121141 is a deficient number, since it is larger than the sum of its proper divisors (1).

12042121141 is an equidigital number, since it uses as much as digits as its factorization.

12042121141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12042121141 its reverse (14112124021), we get a palindrome (26154245162).

The spelling of 12042121141 in words is "twelve billion, forty-two million, one hundred twenty-one thousand, one hundred forty-one".