12303123112 has 16 divisors (see below), whose sum is σ = 26363835360. Its totient is φ = 5272767024.

The previous prime is 12303123097. The next prime is 12303123121. The reversal of 12303123112 is 21132130321.

It is a self number, because there is not a number n which added to its sum of digits gives 12303123112.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109849258 + ... + 109849369.

It is an arithmetic number, because the mean of its divisors is an integer number (1647739710).

Almost surely, 2^12303123112 is an apocalyptic number.

It is an amenable number.

12303123112 is an abundant number, since it is smaller than the sum of its proper divisors (14060712248).

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

12303123112 is a wasteful number, since it uses less digits than its factorization.

12303123112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219698640 (or 219698636 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 12303123112 its reverse (21132130321), we get a palindrome (33435253433).

The spelling of 12303123112 in words is "twelve billion, three hundred three million, one hundred twenty-three thousand, one hundred twelve".