323130212203181 has 2 divisors, whose sum is σ = 323130212203182. Its totient is φ = 323130212203180.

The previous prime is 323130212203177. The next prime is 323130212203217. The reversal of 323130212203181 is 181302212031323.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 313759934092900 + 9370278110281 = 17713270^2 + 3061091^2 .

It is a cyclic number.

It is not a de Polignac number, because 323130212203181 - 2² = 323130212203177 is a prime.

It is a super-2 number, since 2×323130212203181² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (323130212203081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161565106101590 + 161565106101591.

It is an arithmetic number, because the mean of its divisors is an integer number (161565106101591).

Almost surely, 2^{323130212203181} is an apocalyptic number.

It is an amenable number.

323130212203181 is a deficient number, since it is larger than the sum of its proper divisors (1).

323130212203181 is an equidigital number, since it uses as much as digits as its factorization.

323130212203181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 323130212203181 in words is "three hundred twenty-three trillion, one hundred thirty billion, two hundred twelve million, two hundred three thousand, one hundred eighty-one".