123041005 has 4 divisors (see below), whose sum is σ = 147649212. Its totient is φ = 98432800.

The previous prime is 123041003. The next prime is 123041027. The reversal of 123041005 is 500140321.

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 91355364 + 31685641 = 9558^2 + 5629^2 .

It is not a de Polignac number, because 123041005 - 2¹ = 123041003 is a prime.

It is a super-3 number, since 3×123041005³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 123041005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123041003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12304096 + ... + 12304105.

It is an arithmetic number, because the mean of its divisors is an integer number (36912303).

Almost surely, 2^123041005 is an apocalyptic number.

It is an amenable number.

123041005 is a deficient number, since it is larger than the sum of its proper divisors (24608207).

123041005 is an equidigital number, since it uses as much as digits as its factorization.

123041005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24608206.

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

The square root of 123041005 is about 11092.3850005308. The cubic root of 123041005 is about 497.3742415903.

Adding to 123041005 its reverse (500140321), we get a palindrome (623181326).

The spelling of 123041005 in words is "one hundred twenty-three million, forty-one thousand, five".