12431312223 has 16 divisors (see below), whose sum is σ = 18181817472. Its totient is φ = 7492500000.

The previous prime is 12431312219. The next prime is 12431312287. The reversal of 12431312223 is 32221313421.

It is not a de Polignac number, because 12431312223 - 2² = 12431312219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12431312193 and 12431312202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12431312293) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1034653 + ... + 1046598.

It is an arithmetic number, because the mean of its divisors is an integer number (1136363592).

Almost surely, 2^12431312223 is an apocalyptic number.

12431312223 is a deficient number, since it is larger than the sum of its proper divisors (5750505249).

12431312223 is a wasteful number, since it uses less digits than its factorization.

12431312223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2081446.

The product of its digits is 1728, while the sum is 24.

Adding to 12431312223 its reverse (32221313421), we get a palindrome (44652625644).

The spelling of 12431312223 in words is "twelve billion, four hundred thirty-one million, three hundred twelve thousand, two hundred twenty-three".