1242140410993 has 2 divisors, whose sum is σ = 1242140410994. Its totient is φ = 1242140410992.

The previous prime is 1242140410963. The next prime is 1242140411059. The reversal of 1242140410993 is 3990140412421.

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., 702926297649 + 539214113344 = 838407^2 + 734312^2 .

It is an emirp because it is prime and its reverse (3990140412421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1242140410993 - 2²¹ = 1242138313841 is a prime.

It is not a weakly prime, because it can be changed into another prime (1242140410963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621070205496 + 621070205497.

It is an arithmetic number, because the mean of its divisors is an integer number (621070205497).

Almost surely, 2^{1242140410993} is an apocalyptic number.

It is an amenable number.

1242140410993 is a deficient number, since it is larger than the sum of its proper divisors (1).

1242140410993 is an equidigital number, since it uses as much as digits as its factorization.

1242140410993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 40.

The spelling of 1242140410993 in words is "one trillion, two hundred forty-two billion, one hundred forty million, four hundred ten thousand, nine hundred ninety-three".