20123310330329 has 2 divisors, whose sum is σ = 20123310330330. Its totient is φ = 20123310330328.

The previous prime is 20123310330283. The next prime is 20123310330413. The reversal of 20123310330329 is 92303301332102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16080717545929 + 4042592784400 = 4010077^2 + 2010620^2 .

It is a cyclic number.

It is not a de Polignac number, because 20123310330329 - 2¹² = 20123310326233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20123310330295 and 20123310330304.

It is not a weakly prime, because it can be changed into another prime (20123310230329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10061655165164 + 10061655165165.

It is an arithmetic number, because the mean of its divisors is an integer number (10061655165165).

Almost surely, 2^{20123310330329} is an apocalyptic number.

It is an amenable number.

20123310330329 is a deficient number, since it is larger than the sum of its proper divisors (1).

20123310330329 is an equidigital number, since it uses as much as digits as its factorization.

20123310330329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17496, while the sum is 32.

The spelling of 20123310330329 in words is "twenty trillion, one hundred twenty-three billion, three hundred ten million, three hundred thirty thousand, three hundred twenty-nine".