312223321099 has 2 divisors, whose sum is σ = 312223321100. Its totient is φ = 312223321098.

The previous prime is 312223321097. The next prime is 312223321133. The reversal of 312223321099 is 990123322213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 312223321099 - 2¹ = 312223321097 is a prime.

Together with 312223321097, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (312223321097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156111660549 + 156111660550.

It is an arithmetic number, because the mean of its divisors is an integer number (156111660550).

Almost surely, 2^312223321099 is an apocalyptic number.

312223321099 is a deficient number, since it is larger than the sum of its proper divisors (1).

312223321099 is an equidigital number, since it uses as much as digits as its factorization.

312223321099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 37.

The spelling of 312223321099 in words is "three hundred twelve billion, two hundred twenty-three million, three hundred twenty-one thousand, ninety-nine".