140020243301 has 2 divisors, whose sum is σ = 140020243302. Its totient is φ = 140020243300.

The previous prime is 140020243219. The next prime is 140020243303. The reversal of 140020243301 is 103342020041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114548402500 + 25471840801 = 338450^2 + 159599^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140020243301 is a prime.

It is a Sophie Germain prime.

Together with 140020243303, 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 (140020243303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70010121650 + 70010121651.

It is an arithmetic number, because the mean of its divisors is an integer number (70010121651).

Almost surely, 2^140020243301 is an apocalyptic number.

It is an amenable number.

140020243301 is a deficient number, since it is larger than the sum of its proper divisors (1).

140020243301 is an equidigital number, since it uses as much as digits as its factorization.

140020243301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 140020243301 its reverse (103342020041), we get a palindrome (243362263342).

The spelling of 140020243301 in words is "one hundred forty billion, twenty million, two hundred forty-three thousand, three hundred one".