20300100332021 has 2 divisors, whose sum is σ = 20300100332022. Its totient is φ = 20300100332020.

The previous prime is 20300100332011. The next prime is 20300100332023. The reversal of 20300100332021 is 12023300100302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19519510411921 + 780589920100 = 4418089^2 + 883510^2 .

It is a cyclic number.

It is not a de Polignac number, because 20300100332021 - 2¹⁸ = 20300100069877 is a prime.

It is a super-2 number, since 2×20300100332021² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 20300100332023, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20300100332023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10150050166010 + 10150050166011.

It is an arithmetic number, because the mean of its divisors is an integer number (10150050166011).

Almost surely, 2^{20300100332021} is an apocalyptic number.

It is an amenable number.

20300100332021 is a deficient number, since it is larger than the sum of its proper divisors (1).

20300100332021 is an equidigital number, since it uses as much as digits as its factorization.

20300100332021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20300100332021 its reverse (12023300100302), we get a palindrome (32323400432323).

The spelling of 20300100332021 in words is "twenty trillion, three hundred billion, one hundred million, three hundred thirty-two thousand, twenty-one".