200021210023 has 2 divisors, whose sum is σ = 200021210024. Its totient is φ = 200021210022.

The previous prime is 200021210009. The next prime is 200021210143. The reversal of 200021210023 is 320012120002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 200021210023 - 2¹⁷ = 200021078951 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200021209985 and 200021210012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200027210023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100010605011 + 100010605012.

It is an arithmetic number, because the mean of its divisors is an integer number (100010605012).

Almost surely, 2^200021210023 is an apocalyptic number.

200021210023 is a deficient number, since it is larger than the sum of its proper divisors (1).

200021210023 is an equidigital number, since it uses as much as digits as its factorization.

200021210023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 200021210023 its reverse (320012120002), we get a palindrome (520033330025).

The spelling of 200021210023 in words is "two hundred billion, twenty-one million, two hundred ten thousand, twenty-three".