323216920253 has 2 divisors, whose sum is σ = 323216920254. Its totient is φ = 323216920252.

The previous prime is 323216920249. The next prime is 323216920307. The reversal of 323216920253 is 352029612323.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 318120816484 + 5096103769 = 564022^2 + 71387^2 .

It is a cyclic number.

It is not a de Polignac number, because 323216920253 - 2² = 323216920249 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (323216920753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161608460126 + 161608460127.

It is an arithmetic number, because the mean of its divisors is an integer number (161608460127).

Almost surely, 2^323216920253 is an apocalyptic number.

It is an amenable number.

323216920253 is a deficient number, since it is larger than the sum of its proper divisors (1).

323216920253 is an equidigital number, since it uses as much as digits as its factorization.

323216920253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116640, while the sum is 38.

The spelling of 323216920253 in words is "three hundred twenty-three billion, two hundred sixteen million, nine hundred twenty thousand, two hundred fifty-three".