123223005 has 16 divisors (see below), whose sum is σ = 219063360. Its totient is φ = 65718864.

The previous prime is 123223003. The next prime is 123223007. The reversal of 123223005 is 500322321.

It is an interprime number because it is at equal distance from previous prime (123223003) and next prime (123223007).

It is not a de Polignac number, because 123223005 - 2¹ = 123223003 is a prime.

It is a super-2 number, since 2×123223005² = 30367817922460050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123223003) 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 15 ways as a sum of consecutive naturals, for example, 456247 + ... + 456516.

It is an arithmetic number, because the mean of its divisors is an integer number (13691460).

Almost surely, 2^123223005 is an apocalyptic number.

123223005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

123223005 is a deficient number, since it is larger than the sum of its proper divisors (95840355).

123223005 is an equidigital number, since it uses as much as digits as its factorization.

123223005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 912777 (or 912771 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 123223005 is about 11100.5857953533. The cubic root of 123223005 is about 497.6193563950.

Adding to 123223005 its reverse (500322321), we get a palindrome (623545326).

The spelling of 123223005 in words is "one hundred twenty-three million, two hundred twenty-three thousand, five".