123306317 has 2 divisors, whose sum is σ = 123306318. Its totient is φ = 123306316.

The previous prime is 123306307. The next prime is 123306329. The reversal of 123306317 is 713603321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93045316 + 30261001 = 9646^2 + 5501^2 .

It is a cyclic number.

It is not a de Polignac number, because 123306317 - 2⁸ = 123306061 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123306307) 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, 61653158 + 61653159.

It is an arithmetic number, because the mean of its divisors is an integer number (61653159).

Almost surely, 2^123306317 is an apocalyptic number.

It is an amenable number.

123306317 is a deficient number, since it is larger than the sum of its proper divisors (1).

123306317 is an equidigital number, since it uses as much as digits as its factorization.

123306317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 26.

The square root of 123306317 is about 11104.3377560303. The cubic root of 123306317 is about 497.7314791923.

Adding to 123306317 its reverse (713603321), we get a palindrome (836909638).

The spelling of 123306317 in words is "one hundred twenty-three million, three hundred six thousand, three hundred seventeen".