123370217 has 2 divisors, whose sum is σ = 123370218. Its totient is φ = 123370216.

The previous prime is 123370199. The next prime is 123370237. The reversal of 123370217 is 712073321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123121216 + 249001 = 11096^2 + 499^2 .

It is a cyclic number.

It is not a de Polignac number, because 123370217 - 2⁶ = 123370153 is a prime.

It is not a weakly prime, because it can be changed into another prime (123370237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61685108 + 61685109.

It is an arithmetic number, because the mean of its divisors is an integer number (61685109).

Almost surely, 2^123370217 is an apocalyptic number.

It is an amenable number.

123370217 is a deficient number, since it is larger than the sum of its proper divisors (1).

123370217 is an equidigital number, since it uses as much as digits as its factorization.

123370217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1764, while the sum is 26.

The square root of 123370217 is about 11107.2146373427. The cubic root of 123370217 is about 497.8174427500.

The spelling of 123370217 in words is "one hundred twenty-three million, three hundred seventy thousand, two hundred seventeen".