20102021100023 has 2 divisors, whose sum is σ = 20102021100024. Its totient is φ = 20102021100022.

The previous prime is 20102021100011. The next prime is 20102021100079. The reversal of 20102021100023 is 32000112020102.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20102021100023 - 2²⁰ = 20102020051447 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20102021099980 and 20102021100007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20102021108023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10051010550011 + 10051010550012.

It is an arithmetic number, because the mean of its divisors is an integer number (10051010550012).

Almost surely, 2^{20102021100023} is an apocalyptic number.

20102021100023 is a deficient number, since it is larger than the sum of its proper divisors (1).

20102021100023 is an equidigital number, since it uses as much as digits as its factorization.

20102021100023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 20102021100023 its reverse (32000112020102), we get a palindrome (52102133120125).

The spelling of 20102021100023 in words is "twenty trillion, one hundred two billion, twenty-one million, one hundred thousand, twenty-three".