123116017 has 2 divisors, whose sum is σ = 123116018. Its totient is φ = 123116016.

The previous prime is 123115999. The next prime is 123116089. The reversal of 123116017 is 710611321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122412096 + 703921 = 11064^2 + 839^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123116017 is a prime.

It is not a weakly prime, because it can be changed into another prime (123113017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61558008 + 61558009.

It is an arithmetic number, because the mean of its divisors is an integer number (61558009).

Almost surely, 2^123116017 is an apocalyptic number.

It is an amenable number.

123116017 is a deficient number, since it is larger than the sum of its proper divisors (1).

123116017 is an equidigital number, since it uses as much as digits as its factorization.

123116017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 123116017 is about 11095.7657239147. The cubic root of 123116017 is about 497.4752958618.

Adding to 123116017 its reverse (710611321), we get a palindrome (833727338).

The spelling of 123116017 in words is "one hundred twenty-three million, one hundred sixteen thousand, seventeen".