323212021128265 has 4 divisors (see below), whose sum is σ = 387854425353924. Its totient is φ = 258569616902608.

The previous prime is 323212021128263. The next prime is 323212021128319. The reversal of 323212021128265 is 562821120212323.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 153477087856569 + 169734933271696 = 12388587^2 + 13028236^2 .

It is a cyclic number.

It is not a de Polignac number, because 323212021128265 - 2¹ = 323212021128263 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (323212021128263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32321202112822 + ... + 32321202112831.

It is an arithmetic number, because the mean of its divisors is an integer number (96963606338481).

Almost surely, 2^{323212021128265} is an apocalyptic number.

It is an amenable number.

323212021128265 is a deficient number, since it is larger than the sum of its proper divisors (64642404225659).

323212021128265 is an equidigital number, since it uses as much as digits as its factorization.

323212021128265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64642404225658.

The product of its (nonzero) digits is 138240, while the sum is 40.

The spelling of 323212021128265 in words is "three hundred twenty-three trillion, two hundred twelve billion, twenty-one million, one hundred twenty-eight thousand, two hundred sixty-five".