1223023120223 has 4 divisors (see below), whose sum is σ = 1223880180600. Its totient is φ = 1222166059848.

The previous prime is 1223023120213. The next prime is 1223023120273. The reversal of 1223023120223 is 3220213203221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1223023120223 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 (1223023120213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 428528048 + ... + 428530901.

It is an arithmetic number, because the mean of its divisors is an integer number (305970045150).

Almost surely, 2^{1223023120223} is an apocalyptic number.

1223023120223 is a deficient number, since it is larger than the sum of its proper divisors (857060377).

1223023120223 is an equidigital number, since it uses as much as digits as its factorization.

1223023120223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857060376.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 1223023120223 its reverse (3220213203221), we get a palindrome (4443236323444).

The spelling of 1223023120223 in words is "one trillion, two hundred twenty-three billion, twenty-three million, one hundred twenty thousand, two hundred twenty-three".