9312420211 has 2 divisors, whose sum is σ = 9312420212. Its totient is φ = 9312420210.

The previous prime is 9312420209. The next prime is 9312420283. The reversal of 9312420211 is 1120242139.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9312420211 - 2¹ = 9312420209 is a prime.

Together with 9312420209, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (9312420311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4656210105 + 4656210106.

It is an arithmetic number, because the mean of its divisors is an integer number (4656210106).

Almost surely, 2^9312420211 is an apocalyptic number.

9312420211 is a deficient number, since it is larger than the sum of its proper divisors (1).

9312420211 is an equidigital number, since it uses as much as digits as its factorization.

9312420211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 9312420211 is about 96500.8819182498. The cubic root of 9312420211 is about 2103.8794660616.

The spelling of 9312420211 in words is "nine billion, three hundred twelve million, four hundred twenty thousand, two hundred eleven".