312122201323 has 2 divisors, whose sum is σ = 312122201324. Its totient is φ = 312122201322.

The previous prime is 312122201311. The next prime is 312122201359. The reversal of 312122201323 is 323102221213.

It is a weak prime.

It is an emirp because it is prime and its reverse (323102221213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 312122201323 - 2²¹ = 312120104171 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 312122201294 and 312122201303.

It is not a weakly prime, because it can be changed into another prime (312122201423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156061100661 + 156061100662.

It is an arithmetic number, because the mean of its divisors is an integer number (156061100662).

Almost surely, 2^312122201323 is an apocalyptic number.

312122201323 is a deficient number, since it is larger than the sum of its proper divisors (1).

312122201323 is an equidigital number, since it uses as much as digits as its factorization.

312122201323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 312122201323 its reverse (323102221213), we get a palindrome (635224422536).

The spelling of 312122201323 in words is "three hundred twelve billion, one hundred twenty-two million, two hundred one thousand, three hundred twenty-three".