140430300320021 has 2 divisors, whose sum is σ = 140430300320022. Its totient is φ = 140430300320020.

The previous prime is 140430300319993. The next prime is 140430300320039. The reversal of 140430300320021 is 120023003034041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 129341466919921 + 11088833400100 = 11372839^2 + 3329990^2 .

It is an emirp because it is prime and its reverse (120023003034041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140430300320021 - 2¹⁸ = 140430300057877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140430300320071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70215150160010 + 70215150160011.

It is an arithmetic number, because the mean of its divisors is an integer number (70215150160011).

Almost surely, 2^{140430300320021} is an apocalyptic number.

It is an amenable number.

140430300320021 is a deficient number, since it is larger than the sum of its proper divisors (1).

140430300320021 is an equidigital number, since it uses as much as digits as its factorization.

140430300320021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 140430300320021 its reverse (120023003034041), we get a palindrome (260453303354062).

The spelling of 140430300320021 in words is "one hundred forty trillion, four hundred thirty billion, three hundred million, three hundred twenty thousand, twenty-one".