312222310123 has 2 divisors, whose sum is σ = 312222310124. Its totient is φ = 312222310122.

The previous prime is 312222310121. The next prime is 312222310129. The reversal of 312222310123 is 321013222213.

It is a weak prime.

It is an emirp because it is prime and its reverse (321013222213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 312222310123 - 2¹ = 312222310121 is a prime.

Together with 312222310121, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 312222310094 and 312222310103.

It is not a weakly prime, because it can be changed into another prime (312222310121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156111155061 + 156111155062.

It is an arithmetic number, because the mean of its divisors is an integer number (156111155062).

Almost surely, 2^312222310123 is an apocalyptic number.

312222310123 is a deficient number, since it is larger than the sum of its proper divisors (1).

312222310123 is an equidigital number, since it uses as much as digits as its factorization.

312222310123 is an evil number, because the sum of its binary digits is even.

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

Adding to 312222310123 its reverse (321013222213), we get a palindrome (633235532336).

The spelling of 312222310123 in words is "three hundred twelve billion, two hundred twenty-two million, three hundred ten thousand, one hundred twenty-three".