323201130133181 has 2 divisors, whose sum is σ = 323201130133182. Its totient is φ = 323201130133180.

The previous prime is 323201130133159. The next prime is 323201130133319. The reversal of 323201130133181 is 181331031102323.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 169980552200281 + 153220577932900 = 13037659^2 + 12378230^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-323201130133181 is a prime.

It is a super-2 number, since 2×323201130133181² (a number of 30 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (323201130133111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161600565066590 + 161600565066591.

It is an arithmetic number, because the mean of its divisors is an integer number (161600565066591).

Almost surely, 2^{323201130133181} is an apocalyptic number.

It is an amenable number.

323201130133181 is a deficient number, since it is larger than the sum of its proper divisors (1).

323201130133181 is an equidigital number, since it uses as much as digits as its factorization.

323201130133181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 32.

The spelling of 323201130133181 in words is "three hundred twenty-three trillion, two hundred one billion, one hundred thirty million, one hundred thirty-three thousand, one hundred eighty-one".