20223310130021 has 2 divisors, whose sum is σ = 20223310130022. Its totient is φ = 20223310130020.

The previous prime is 20223310130011. The next prime is 20223310130027. The reversal of 20223310130021 is 12003101332202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19852496116996 + 370814013025 = 4455614^2 + 608945^2 .

It is a cyclic number.

It is not a de Polignac number, because 20223310130021 - 2²² = 20223305935717 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20223310129975 and 20223310130002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20223310130027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10111655065010 + 10111655065011.

It is an arithmetic number, because the mean of its divisors is an integer number (10111655065011).

Almost surely, 2^{20223310130021} is an apocalyptic number.

It is an amenable number.

20223310130021 is a deficient number, since it is larger than the sum of its proper divisors (1).

20223310130021 is an equidigital number, since it uses as much as digits as its factorization.

20223310130021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20223310130021 its reverse (12003101332202), we get a palindrome (32226411462223).

The spelling of 20223310130021 in words is "twenty trillion, two hundred twenty-three billion, three hundred ten million, one hundred thirty thousand, twenty-one".