123315005 has 8 divisors (see below), whose sum is σ = 161430624. Its totient is φ = 89683600.

The previous prime is 123314987. The next prime is 123315007. The reversal of 123315005 is 500513321.

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

It is not a de Polignac number, because 123315005 - 2⁸ = 123314749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123315007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1120991 + ... + 1121100.

It is an arithmetic number, because the mean of its divisors is an integer number (20178828).

Almost surely, 2^123315005 is an apocalyptic number.

It is an amenable number.

123315005 is a deficient number, since it is larger than the sum of its proper divisors (38115619).

123315005 is a wasteful number, since it uses less digits than its factorization.

123315005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2242107.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 123315005 is about 11104.7289476151. The cubic root of 123315005 is about 497.7431687517.

Adding to 123315005 its reverse (500513321), we get a palindrome (623828326).

The spelling of 123315005 in words is "one hundred twenty-three million, three hundred fifteen thousand, five".