123013223 has 4 divisors (see below), whose sum is σ = 128361648. Its totient is φ = 117664800.

The previous prime is 123013217. The next prime is 123013237. The reversal of 123013223 is 322310321.

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 123013223 - 2¹⁶ = 122947687 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 (123013213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2674178 + ... + 2674223.

It is an arithmetic number, because the mean of its divisors is an integer number (32090412).

Almost surely, 2^123013223 is an apocalyptic number.

123013223 is a deficient number, since it is larger than the sum of its proper divisors (5348425).

123013223 is an equidigital number, since it uses as much as digits as its factorization.

123013223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5348424.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 123013223 is about 11091.1326292674. The cubic root of 123013223 is about 497.3368039591.

Adding to 123013223 its reverse (322310321), we get a palindrome (445323544).

The spelling of 123013223 in words is "one hundred twenty-three million, thirteen thousand, two hundred twenty-three".