12210231323 has 4 divisors (see below), whose sum is σ = 12210524040. Its totient is φ = 12209938608.

The previous prime is 12210231263. The next prime is 12210231331. The reversal of 12210231323 is 32313201221.

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 12210231323 - 2⁶ = 12210231259 is a prime.

It is a super-2 number, since 2×12210231323² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12210231295 and 12210231304.

It is not an unprimeable number, because it can be changed into a prime (12210251323) 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, 70778 + ... + 171551.

It is an arithmetic number, because the mean of its divisors is an integer number (3052631010).

Almost surely, 2^12210231323 is an apocalyptic number.

12210231323 is a deficient number, since it is larger than the sum of its proper divisors (292717).

12210231323 is an equidigital number, since it uses as much as digits as its factorization.

12210231323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292716.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 12210231323 its reverse (32313201221), we get a palindrome (44523432544).

The spelling of 12210231323 in words is "twelve billion, two hundred ten million, two hundred thirty-one thousand, three hundred twenty-three".