323313313212173 has 2 divisors, whose sum is σ = 323313313212174. Its totient is φ = 323313313212172.

The previous prime is 323313313212053. The next prime is 323313313212203. The reversal of 323313313212173 is 371212313313323.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 163389417417769 + 159923895794404 = 12782387^2 + 12646102^2 .

It is a cyclic number.

It is not a de Polignac number, because 323313313212173 - 2²² = 323313309017869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (323313313211173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161656656606086 + 161656656606087.

It is an arithmetic number, because the mean of its divisors is an integer number (161656656606087).

Almost surely, 2^{323313313212173} is an apocalyptic number.

It is an amenable number.

323313313212173 is a deficient number, since it is larger than the sum of its proper divisors (1).

323313313212173 is an equidigital number, since it uses as much as digits as its factorization.

323313313212173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 122472, while the sum is 38.

Adding to 323313313212173 its reverse (371212313313323), we get a palindrome (694525626525496).

The spelling of 323313313212173 in words is "three hundred twenty-three trillion, three hundred thirteen billion, three hundred thirteen million, two hundred twelve thousand, one hundred seventy-three".