12213132113123 has 4 divisors (see below), whose sum is σ = 12413347393728. Its totient is φ = 12012916832520.

The previous prime is 12213132113099. The next prime is 12213132113129. The reversal of 12213132113123 is 32131123131221.

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 12213132113123 - 2⁶ = 12213132113059 is a prime.

It is a super-4 number, since 4×12213132113123⁴ (a number of 53 digits) contains 4444 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12213132113092 and 12213132113101.

It is not an unprimeable number, because it can be changed into a prime (12213132113129) 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, 100107640211 + ... + 100107640332.

It is an arithmetic number, because the mean of its divisors is an integer number (3103336848432).

Almost surely, 2^{12213132113123} is an apocalyptic number.

12213132113123 is a deficient number, since it is larger than the sum of its proper divisors (200215280605).

12213132113123 is an equidigital number, since it uses as much as digits as its factorization.

12213132113123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200215280604.

The product of its digits is 1296, while the sum is 26.

Adding to 12213132113123 its reverse (32131123131221), we get a palindrome (44344255244344).

The spelling of 12213132113123 in words is "twelve trillion, two hundred thirteen billion, one hundred thirty-two million, one hundred thirteen thousand, one hundred twenty-three".