20200200021137 has 2 divisors, whose sum is σ = 20200200021138. Its totient is φ = 20200200021136.

The previous prime is 20200200021011. The next prime is 20200200021179. The reversal of 20200200021137 is 73112000200202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18561311024656 + 1638888996481 = 4308284^2 + 1280191^2 .

It is a cyclic number.

It is not a de Polignac number, because 20200200021137 - 2¹⁸ = 20200199758993 is a prime.

It is not a weakly prime, because it can be changed into another prime (20200200021437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100100010568 + 10100100010569.

It is an arithmetic number, because the mean of its divisors is an integer number (10100100010569).

Almost surely, 2^{20200200021137} is an apocalyptic number.

It is an amenable number.

20200200021137 is a deficient number, since it is larger than the sum of its proper divisors (1).

20200200021137 is an equidigital number, since it uses as much as digits as its factorization.

20200200021137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 20.

Adding to 20200200021137 its reverse (73112000200202), we get a palindrome (93312200221339).

The spelling of 20200200021137 in words is "twenty trillion, two hundred billion, two hundred million, twenty-one thousand, one hundred thirty-seven".