20330323013173 has 2 divisors, whose sum is σ = 20330323013174. Its totient is φ = 20330323013172.

The previous prime is 20330323013051. The next prime is 20330323013191. The reversal of 20330323013173 is 37131032303302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11122211660004 + 9208111353169 = 3334998^2 + 3034487^2 .

It is a cyclic number.

It is not a de Polignac number, because 20330323013173 - 2³⁷ = 20192884059701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20330323016173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10165161506586 + 10165161506587.

It is an arithmetic number, because the mean of its divisors is an integer number (10165161506587).

Almost surely, 2^{20330323013173} is an apocalyptic number.

It is an amenable number.

20330323013173 is a deficient number, since it is larger than the sum of its proper divisors (1).

20330323013173 is an equidigital number, since it uses as much as digits as its factorization.

20330323013173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20412, while the sum is 31.

Adding to 20330323013173 its reverse (37131032303302), we get a palindrome (57461355316475).

The spelling of 20330323013173 in words is "twenty trillion, three hundred thirty billion, three hundred twenty-three million, thirteen thousand, one hundred seventy-three".