20501202434201 has 2 divisors, whose sum is σ = 20501202434202. Its totient is φ = 20501202434200.

The previous prime is 20501202434173. The next prime is 20501202434203. The reversal of 20501202434201 is 10243420210502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16088161110025 + 4413041324176 = 4011005^2 + 2100724^2 .

It is a cyclic number.

It is not a de Polignac number, because 20501202434201 - 2¹⁰ = 20501202433177 is a prime.

Together with 20501202434203, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20501202434203) 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, 10250601217100 + 10250601217101.

It is an arithmetic number, because the mean of its divisors is an integer number (10250601217101).

Almost surely, 2^{20501202434201} is an apocalyptic number.

It is an amenable number.

20501202434201 is a deficient number, since it is larger than the sum of its proper divisors (1).

20501202434201 is an equidigital number, since it uses as much as digits as its factorization.

20501202434201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 20501202434201 its reverse (10243420210502), we get a palindrome (30744622644703).

The spelling of 20501202434201 in words is "twenty trillion, five hundred one billion, two hundred two million, four hundred thirty-four thousand, two hundred one".