220020310131169 has 2 divisors, whose sum is σ = 220020310131170. Its totient is φ = 220020310131168.

The previous prime is 220020310130993. The next prime is 220020310131221. The reversal of 220020310131169 is 961131013020022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 196109579311569 + 23910730819600 = 14003913^2 + 4889860^2 .

It is a cyclic number.

It is not a de Polignac number, because 220020310131169 - 2²⁷ = 220020175913441 is a prime.

It is a super-2 number, since 2×220020310131169² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 220020310131169.

It is not a weakly prime, because it can be changed into another prime (220020310131269) 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, 110010155065584 + 110010155065585.

It is an arithmetic number, because the mean of its divisors is an integer number (110010155065585).

Almost surely, 2^{220020310131169} is an apocalyptic number.

It is an amenable number.

220020310131169 is a deficient number, since it is larger than the sum of its proper divisors (1).

220020310131169 is an equidigital number, since it uses as much as digits as its factorization.

220020310131169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 31.

The spelling of 220020310131169 in words is "two hundred twenty trillion, twenty billion, three hundred ten million, one hundred thirty-one thousand, one hundred sixty-nine".