20102121102023 has 2 divisors, whose sum is σ = 20102121102024. Its totient is φ = 20102121102022.

The previous prime is 20102121101999. The next prime is 20102121102031. The reversal of 20102121102023 is 32020112120102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20102121102023 - 2²⁴ = 20102104324807 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 20102121101992 and 20102121102010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20102121102073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10051060551011 + 10051060551012.

It is an arithmetic number, because the mean of its divisors is an integer number (10051060551012).

Almost surely, 2^{20102121102023} is an apocalyptic number.

20102121102023 is a deficient number, since it is larger than the sum of its proper divisors (1).

20102121102023 is an equidigital number, since it uses as much as digits as its factorization.

20102121102023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 20102121102023 its reverse (32020112120102), we get a palindrome (52122233222125).

The spelling of 20102121102023 in words is "twenty trillion, one hundred two billion, one hundred twenty-one million, one hundred two thousand, twenty-three".