212310347 has 2 divisors, whose sum is σ = 212310348. Its totient is φ = 212310346.

The previous prime is 212310283. The next prime is 212310361. The reversal of 212310347 is 743013212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212310347 - 2⁶ = 212310283 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (212310947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106155173 + 106155174.

It is an arithmetic number, because the mean of its divisors is an integer number (106155174).

Almost surely, 2^212310347 is an apocalyptic number.

212310347 is a deficient number, since it is larger than the sum of its proper divisors (1).

212310347 is an equidigital number, since it uses as much as digits as its factorization.

212310347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 212310347 is about 14570.8732408185. The cubic root of 212310347 is about 596.5640155413.

Adding to 212310347 its reverse (743013212), we get a palindrome (955323559).

The spelling of 212310347 in words is "two hundred twelve million, three hundred ten thousand, three hundred forty-seven".