20330232103021 has 2 divisors, whose sum is σ = 20330232103022. Its totient is φ = 20330232103020.

The previous prime is 20330232103001. The next prime is 20330232103043. The reversal of 20330232103021 is 12030123203302.

It is an a-pointer prime, because the next prime (20330232103043) can be obtained adding 20330232103021 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11493964575625 + 8836267527396 = 3390275^2 + 2972586^2 .

It is a cyclic number.

It is not a de Polignac number, because 20330232103021 - 2¹¹ = 20330232100973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20330232102983 and 20330232103001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20330232103001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10165116051510 + 10165116051511.

It is an arithmetic number, because the mean of its divisors is an integer number (10165116051511).

Almost surely, 2^{20330232103021} is an apocalyptic number.

It is an amenable number.

20330232103021 is a deficient number, since it is larger than the sum of its proper divisors (1).

20330232103021 is an equidigital number, since it uses as much as digits as its factorization.

20330232103021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 20330232103021 its reverse (12030123203302), we get a palindrome (32360355306323).

The spelling of 20330232103021 in words is "twenty trillion, three hundred thirty billion, two hundred thirty-two million, one hundred three thousand, twenty-one".