12203031323 has 4 divisors (see below), whose sum is σ = 13946321520. Its totient is φ = 10459741128.

The previous prime is 12203031319. The next prime is 12203031331. The reversal of 12203031323 is 32313030221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32313030221 = 79 ⋅409025699.

It is a cyclic number.

It is not a de Polignac number, because 12203031323 - 2² = 12203031319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12203031295 and 12203031304.

It is not an unprimeable number, because it can be changed into a prime (12203031343) 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, 871645088 + ... + 871645101.

It is an arithmetic number, because the mean of its divisors is an integer number (3486580380).

Almost surely, 2^12203031323 is an apocalyptic number.

12203031323 is a deficient number, since it is larger than the sum of its proper divisors (1743290197).

12203031323 is an equidigital number, since it uses as much as digits as its factorization.

12203031323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1743290196.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 12203031323 its reverse (32313030221), we get a palindrome (44516061544).

The spelling of 12203031323 in words is "twelve billion, two hundred three million, thirty-one thousand, three hundred twenty-three".