10140342320021 has 2 divisors, whose sum is σ = 10140342320022. Its totient is φ = 10140342320020.

The previous prime is 10140342319993. The next prime is 10140342320041. The reversal of 10140342320021 is 12002324304101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9904622359921 + 235719960100 = 3147161^2 + 485510^2 .

It is a cyclic number.

It is not a de Polignac number, because 10140342320021 - 2³⁴ = 10123162450837 is a prime.

It is a Sophie Germain 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 (10140342320041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5070171160010 + 5070171160011.

It is an arithmetic number, because the mean of its divisors is an integer number (5070171160011).

Almost surely, 2^{10140342320021} is an apocalyptic number.

It is an amenable number.

10140342320021 is a deficient number, since it is larger than the sum of its proper divisors (1).

10140342320021 is an equidigital number, since it uses as much as digits as its factorization.

10140342320021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 10140342320021 its reverse (12002324304101), we get a palindrome (22142666624122).

The spelling of 10140342320021 in words is "ten trillion, one hundred forty billion, three hundred forty-two million, three hundred twenty thousand, twenty-one".