12312103224 has 16 divisors (see below), whose sum is σ = 30780258120. Its totient is φ = 4104034400.

The previous prime is 12312103217. The next prime is 12312103229. The reversal of 12312103224 is 42230121321.

It is a self number, because there is not a number n which added to its sum of digits gives 12312103224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12312103229) 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, 256502127 + ... + 256502174.

Almost surely, 2^12312103224 is an apocalyptic number.

It is an amenable number.

12312103224 is an abundant number, since it is smaller than the sum of its proper divisors (18468154896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12312103224 is a wasteful number, since it uses less digits than its factorization.

12312103224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513004310 (or 513004306 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 12312103224 its reverse (42230121321), we get a palindrome (54542224545).

The spelling of 12312103224 in words is "twelve billion, three hundred twelve million, one hundred three thousand, two hundred twenty-four".