123104005 has 8 divisors (see below), whose sum is σ = 148339224. Its totient is φ = 98073600.

The previous prime is 123103993. The next prime is 123104053. The reversal of 123104005 is 500401321.

It can be written as a sum of positive squares in 4 ways, for example, as 61371556 + 61732449 = 7834^2 + 7857^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 123104005 - 2⁵ = 123103973 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123104005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49876 + ... + 52285.

It is an arithmetic number, because the mean of its divisors is an integer number (18542403).

Almost surely, 2^123104005 is an apocalyptic number.

It is an amenable number.

123104005 is a deficient number, since it is larger than the sum of its proper divisors (25235219).

123104005 is a wasteful number, since it uses less digits than its factorization.

123104005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102407.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 123104005 is about 11095.2244231471. The cubic root of 123104005 is about 497.4591163595.

Adding to 123104005 its reverse (500401321), we get a palindrome (623505326).

The spelling of 123104005 in words is "one hundred twenty-three million, one hundred four thousand, five".