12431103112 has 32 divisors (see below), whose sum is σ = 25160414400. Its totient is φ = 5740297024.

The previous prime is 12431103101. The next prime is 12431103119. The reversal of 12431103112 is 21130113421.

It is a self number, because there is not a number n which added to its sum of digits gives 12431103112.

It is not an unprimeable number, because it can be changed into a prime (12431103119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1159498 + ... + 1170169.

It is an arithmetic number, because the mean of its divisors is an integer number (786262950).

Almost surely, 2^12431103112 is an apocalyptic number.

It is an amenable number.

12431103112 is an abundant number, since it is smaller than the sum of its proper divisors (12729311288).

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

12431103112 is a wasteful number, since it uses less digits than its factorization.

12431103112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2329725 (or 2329721 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 12431103112 its reverse (21130113421), we get a palindrome (33561216533).

The spelling of 12431103112 in words is "twelve billion, four hundred thirty-one million, one hundred three thousand, one hundred twelve".