20010100200023 has 2 divisors, whose sum is σ = 20010100200024. Its totient is φ = 20010100200022.

The previous prime is 20010100199989. The next prime is 20010100200043. The reversal of 20010100200023 is 32000200101002.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20010100200023 - 2²⁶ = 20010033091159 is a prime.

It is a super-2 number, since 2×20010100200023² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20010100199977 and 20010100200013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20010100200043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10005050100011 + 10005050100012.

It is an arithmetic number, because the mean of its divisors is an integer number (10005050100012).

Almost surely, 2^{20010100200023} is an apocalyptic number.

20010100200023 is a deficient number, since it is larger than the sum of its proper divisors (1).

20010100200023 is an equidigital number, since it uses as much as digits as its factorization.

20010100200023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 20010100200023 its reverse (32000200101002), we get a palindrome (52010300301025).

The spelling of 20010100200023 in words is "twenty trillion, ten billion, one hundred million, two hundred thousand, twenty-three".