20003334134137 has 2 divisors, whose sum is σ = 20003334134138. Its totient is φ = 20003334134136.

The previous prime is 20003334134131. The next prime is 20003334134239. The reversal of 20003334134137 is 73143143330002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11423291386896 + 8580042747241 = 3379836^2 + 2929171^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20003334134137 is a prime.

It is not a weakly prime, because it can be changed into another prime (20003334134131) 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, 10001667067068 + 10001667067069.

It is an arithmetic number, because the mean of its divisors is an integer number (10001667067069).

Almost surely, 2^{20003334134137} is an apocalyptic number.

It is an amenable number.

20003334134137 is a deficient number, since it is larger than the sum of its proper divisors (1).

20003334134137 is an equidigital number, since it uses as much as digits as its factorization.

20003334134137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 34.

Adding to 20003334134137 its reverse (73143143330002), we get a palindrome (93146477464139).

The spelling of 20003334134137 in words is "twenty trillion, three billion, three hundred thirty-four million, one hundred thirty-four thousand, one hundred thirty-seven".