1240433042141 has 2 divisors, whose sum is σ = 1240433042142. Its totient is φ = 1240433042140.

The previous prime is 1240433042137. The next prime is 1240433042143. The reversal of 1240433042141 is 1412403340421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 698192265241 + 542240776900 = 835579^2 + 736370^2 .

It is an emirp because it is prime and its reverse (1412403340421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1240433042141 - 2² = 1240433042137 is a prime.

It is a Sophie Germain prime.

Together with 1240433042143, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1240433042143) 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, 620216521070 + 620216521071.

It is an arithmetic number, because the mean of its divisors is an integer number (620216521071).

Almost surely, 2^{1240433042141} is an apocalyptic number.

It is an amenable number.

1240433042141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1240433042141 is an equidigital number, since it uses as much as digits as its factorization.

1240433042141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 1240433042141 its reverse (1412403340421), we get a palindrome (2652836382562).

The spelling of 1240433042141 in words is "one trillion, two hundred forty billion, four hundred thirty-three million, forty-two thousand, one hundred forty-one".