141387798518321 has 2 divisors, whose sum is σ = 141387798518322. Its totient is φ = 141387798518320.

The previous prime is 141387798518297. The next prime is 141387798518437. The reversal of 141387798518321 is 123815897783141.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123920088163600 + 17467710354721 = 11131940^2 + 4179439^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-141387798518321 is a prime.

It is not a weakly prime, because it can be changed into another prime (141387798518221) 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, 70693899259160 + 70693899259161.

It is an arithmetic number, because the mean of its divisors is an integer number (70693899259161).

Almost surely, 2^{141387798518321} is an apocalyptic number.

It is an amenable number.

141387798518321 is a deficient number, since it is larger than the sum of its proper divisors (1).

141387798518321 is an equidigital number, since it uses as much as digits as its factorization.

141387798518321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81285120, while the sum is 68.

The spelling of 141387798518321 in words is "one hundred forty-one trillion, three hundred eighty-seven billion, seven hundred ninety-eight million, five hundred eighteen thousand, three hundred twenty-one".