323212000000081 has 2 divisors, whose sum is σ = 323212000000082. Its totient is φ = 323212000000080.

The previous prime is 323212000000069. The next prime is 323212000000187. The reversal of 323212000000081 is 180000000212323.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 237487085499456 + 85724914500625 = 15410616^2 + 9258775^2 .

It is a cyclic number.

It is not a de Polignac number, because 323212000000081 - 2¹¹ = 323211999998033 is a prime.

It is a super-2 number, since 2×323212000000081² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 323211999999989 and 323212000000061.

It is not a weakly prime, because it can be changed into another prime (323212000000051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161606000000040 + 161606000000041.

It is an arithmetic number, because the mean of its divisors is an integer number (161606000000041).

Almost surely, 2^{323212000000081} is an apocalyptic number.

It is an amenable number.

323212000000081 is a deficient number, since it is larger than the sum of its proper divisors (1).

323212000000081 is an equidigital number, since it uses as much as digits as its factorization.

323212000000081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

The spelling of 323212000000081 in words is "three hundred twenty-three trillion, two hundred twelve billion, eighty-one", and thus it is an aban number.