20315445210329 has 2 divisors, whose sum is σ = 20315445210330. Its totient is φ = 20315445210328.

The previous prime is 20315445210323. The next prime is 20315445210367. The reversal of 20315445210329 is 92301254451302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17632230855625 + 2683214354704 = 4199075^2 + 1638052^2 .

It is a cyclic number.

It is not a de Polignac number, because 20315445210329 - 2⁴⁰ = 19215933582553 is a prime.

It is not a weakly prime, because it can be changed into another prime (20315445210323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10157722605164 + 10157722605165.

It is an arithmetic number, because the mean of its divisors is an integer number (10157722605165).

Almost surely, 2^{20315445210329} is an apocalyptic number.

It is an amenable number.

20315445210329 is a deficient number, since it is larger than the sum of its proper divisors (1).

20315445210329 is an equidigital number, since it uses as much as digits as its factorization.

20315445210329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 259200, while the sum is 41.

The spelling of 20315445210329 in words is "twenty trillion, three hundred fifteen billion, four hundred forty-five million, two hundred ten thousand, three hundred twenty-nine".