200113010021 has 2 divisors, whose sum is σ = 200113010022. Its totient is φ = 200113010020.

The previous prime is 200113010011. The next prime is 200113010051. The reversal of 200113010021 is 120010311002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 170197502500 + 29915507521 = 412550^2 + 172961^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200113010021 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 200113009984 and 200113010011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200113010011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100056505010 + 100056505011.

It is an arithmetic number, because the mean of its divisors is an integer number (100056505011).

Almost surely, 2^200113010021 is an apocalyptic number.

It is an amenable number.

200113010021 is a deficient number, since it is larger than the sum of its proper divisors (1).

200113010021 is an equidigital number, since it uses as much as digits as its factorization.

200113010021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 200113010021 its reverse (120010311002), we get a palindrome (320123321023).

The spelling of 200113010021 in words is "two hundred billion, one hundred thirteen million, ten thousand, twenty-one".