123104017 has 4 divisors (see below), whose sum is σ = 126106596. Its totient is φ = 120101440.

The previous prime is 123103993. The next prime is 123104053. The reversal of 123104017 is 710401321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 34762816 + 88341201 = 5896^2 + 9399^2 .

It is a cyclic number.

It is not a de Polignac number, because 123104017 - 2²³ = 114715409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123103985 and 123104003.

It is not an unprimeable number, because it can be changed into a prime (123104117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1501228 + ... + 1501309.

It is an arithmetic number, because the mean of its divisors is an integer number (31526649).

Almost surely, 2^123104017 is an apocalyptic number.

It is an amenable number.

123104017 is a deficient number, since it is larger than the sum of its proper divisors (3002579).

123104017 is an equidigital number, since it uses as much as digits as its factorization.

123104017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3002578.

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

The square root of 123104017 is about 11095.2249639203. The cubic root of 123104017 is about 497.4591325234.

Adding to 123104017 its reverse (710401321), we get a palindrome (833505338).

The spelling of 123104017 in words is "one hundred twenty-three million, one hundred four thousand, seventeen".