312230103209209 has 2 divisors, whose sum is σ = 312230103209210. Its totient is φ = 312230103209208.

The previous prime is 312230103209201. The next prime is 312230103209221. The reversal of 312230103209209 is 902902301032213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 177314444506809 + 134915658702400 = 13315947^2 + 11615320^2 .

It is a cyclic number.

It is not a de Polignac number, because 312230103209209 - 2³ = 312230103209201 is a prime.

It is not a weakly prime, because it can be changed into another prime (312230103209201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156115051604604 + 156115051604605.

It is an arithmetic number, because the mean of its divisors is an integer number (156115051604605).

Almost surely, 2^{312230103209209} is an apocalyptic number.

It is an amenable number.

312230103209209 is a deficient number, since it is larger than the sum of its proper divisors (1).

312230103209209 is an equidigital number, since it uses as much as digits as its factorization.

312230103209209 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 312230103209209 in words is "three hundred twelve trillion, two hundred thirty billion, one hundred three million, two hundred nine thousand, two hundred nine".