200021210000023 has 2 divisors, whose sum is σ = 200021210000024. Its totient is φ = 200021210000022.

The previous prime is 200021209999951. The next prime is 200021210000063. The reversal of 200021210000023 is 320000012120002.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200021210000023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200021209999958 and 200021210000012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200021210000063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100010605000011 + 100010605000012.

It is an arithmetic number, because the mean of its divisors is an integer number (100010605000012).

Almost surely, 2^{200021210000023} is an apocalyptic number.

200021210000023 is a deficient number, since it is larger than the sum of its proper divisors (1).

200021210000023 is an equidigital number, since it uses as much as digits as its factorization.

200021210000023 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 200021210000023 its reverse (320000012120002), we get a palindrome (520021222120025).

The spelling of 200021210000023 in words is "two hundred trillion, twenty-one billion, two hundred ten million, twenty-three", and thus it is an aban number.