12331121323 has 4 divisors (see below), whose sum is σ = 12362182480. Its totient is φ = 12300060168.

The previous prime is 12331121321. The next prime is 12331121357. The reversal of 12331121323 is 32312113321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32312113321 = 727 ⋅44445823.

It is a cyclic number.

It is not a de Polignac number, because 12331121323 - 2¹ = 12331121321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12331121294 and 12331121303.

It is not an unprimeable number, because it can be changed into a prime (12331121321) 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, 15529983 + ... + 15530776.

It is an arithmetic number, because the mean of its divisors is an integer number (3090545620).

Almost surely, 2^12331121323 is an apocalyptic number.

12331121323 is a deficient number, since it is larger than the sum of its proper divisors (31061157).

12331121323 is an equidigital number, since it uses as much as digits as its factorization.

12331121323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31061156.

The product of its digits is 648, while the sum is 22.

Adding to 12331121323 its reverse (32312113321), we get a palindrome (44643234644).

The spelling of 12331121323 in words is "twelve billion, three hundred thirty-one million, one hundred twenty-one thousand, three hundred twenty-three".