123104015 has 4 divisors (see below), whose sum is σ = 147724824. Its totient is φ = 98483208.

The previous prime is 123103993. The next prime is 123104053. The reversal of 123104015 is 510401321.

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

It is a cyclic number.

It is not a de Polignac number, because 123104015 - 2¹⁴ = 123087631 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123103984 and 123104002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12310397 + ... + 12310406.

It is an arithmetic number, because the mean of its divisors is an integer number (36931206).

Almost surely, 2^123104015 is an apocalyptic number.

123104015 is a deficient number, since it is larger than the sum of its proper divisors (24620809).

123104015 is an equidigital number, since it uses as much as digits as its factorization.

123104015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24620808.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 123104015 is about 11095.2248737914. The cubic root of 123104015 is about 497.4591298294.

Adding to 123104015 its reverse (510401321), we get a palindrome (633505336).

The spelling of 123104015 in words is "one hundred twenty-three million, one hundred four thousand, fifteen".