312322223201999 has 2 divisors, whose sum is σ = 312322223202000. Its totient is φ = 312322223201998.

The previous prime is 312322223201971. The next prime is 312322223202019. The reversal of 312322223201999 is 999102322223213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 312322223201999 - 2²⁰ = 312322222153423 is a prime.

It is a super-2 number, since 2×312322223201999² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312322223201699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156161111600999 + 156161111601000.

It is an arithmetic number, because the mean of its divisors is an integer number (156161111601000).

Almost surely, 2^{312322223201999} is an apocalyptic number.

312322223201999 is a deficient number, since it is larger than the sum of its proper divisors (1).

312322223201999 is an equidigital number, since it uses as much as digits as its factorization.

312322223201999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1259712, while the sum is 50.

The spelling of 312322223201999 in words is "three hundred twelve trillion, three hundred twenty-two billion, two hundred twenty-three million, two hundred one thousand, nine hundred ninety-nine".