123040117 has 2 divisors, whose sum is σ = 123040118. Its totient is φ = 123040116.

The previous prime is 123040109. The next prime is 123040121. The reversal of 123040117 is 711040321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63457156 + 59582961 = 7966^2 + 7719^2 .

It is a cyclic number.

It is not a de Polignac number, because 123040117 - 2³ = 123040109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123040094 and 123040103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123040517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61520058 + 61520059.

It is an arithmetic number, because the mean of its divisors is an integer number (61520059).

Almost surely, 2^123040117 is an apocalyptic number.

It is an amenable number.

123040117 is a deficient number, since it is larger than the sum of its proper divisors (1).

123040117 is an equidigital number, since it uses as much as digits as its factorization.

123040117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 123040117 is about 11092.3449729983. The cubic root of 123040117 is about 497.3730450532.

Adding to 123040117 its reverse (711040321), we get a palindrome (834080438).

The spelling of 123040117 in words is "one hundred twenty-three million, forty thousand, one hundred seventeen".