12213123213023 has 4 divisors (see below), whose sum is σ = 12214250207640. Its totient is φ = 12211996218408.

The previous prime is 12213123213007. The next prime is 12213123213029. The reversal of 12213123213023 is 32031232131221.

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 12213123213023 - 2⁴ = 12213123213007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12213123212983 and 12213123213001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12213123213029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 563481053 + ... + 563502726.

It is an arithmetic number, because the mean of its divisors is an integer number (3053562551910).

Almost surely, 2^{12213123213023} is an apocalyptic number.

12213123213023 is a deficient number, since it is larger than the sum of its proper divisors (1126994617).

12213123213023 is a wasteful number, since it uses less digits than its factorization.

12213123213023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126994616.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 12213123213023 its reverse (32031232131221), we get a palindrome (44244355344244).

The spelling of 12213123213023 in words is "twelve trillion, two hundred thirteen billion, one hundred twenty-three million, two hundred thirteen thousand, twenty-three".