123020223 has 4 divisors (see below), whose sum is σ = 164026968. Its totient is φ = 82013480.

The previous prime is 123020221. The next prime is 123020239. The reversal of 123020223 is 322020321.

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 123020223 - 2¹ = 123020221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123020221) 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, 20503368 + ... + 20503373.

It is an arithmetic number, because the mean of its divisors is an integer number (41006742).

Almost surely, 2^123020223 is an apocalyptic number.

123020223 is a deficient number, since it is larger than the sum of its proper divisors (41006745).

123020223 is an equidigital number, since it uses as much as digits as its factorization.

123020223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41006744.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 123020223 is about 11091.4481921884. The cubic root of 123020223 is about 497.3462373395.

Adding to 123020223 its reverse (322020321), we get a palindrome (445040544).

The spelling of 123020223 in words is "one hundred twenty-three million, twenty thousand, two hundred twenty-three".