20331303331169 has 2 divisors, whose sum is σ = 20331303331170. Its totient is φ = 20331303331168.

The previous prime is 20331303331147. The next prime is 20331303331187. The reversal of 20331303331169 is 96113330313302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15579282643600 + 4752020687569 = 3947060^2 + 2179913^2 .

It is a cyclic number.

It is not a de Polignac number, because 20331303331169 - 2⁸ = 20331303330913 is a prime.

It is a super-2 number, since 2×20331303331169² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20331303331069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10165651665584 + 10165651665585.

It is an arithmetic number, because the mean of its divisors is an integer number (10165651665585).

Almost surely, 2^{20331303331169} is an apocalyptic number.

It is an amenable number.

20331303331169 is a deficient number, since it is larger than the sum of its proper divisors (1).

20331303331169 is an equidigital number, since it uses as much as digits as its factorization.

20331303331169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 78732, while the sum is 38.

The spelling of 20331303331169 in words is "twenty trillion, three hundred thirty-one billion, three hundred three million, three hundred thirty-one thousand, one hundred sixty-nine".