12123112232 has 32 divisors (see below), whose sum is σ = 28339744320. Its totient is φ = 4723290240.

The previous prime is 12123112231. The next prime is 12123112289. The reversal of 12123112232 is 23221132121.

It is not an unprimeable number, because it can be changed into a prime (12123112231) 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, 9839573 + ... + 9840804.

It is an arithmetic number, because the mean of its divisors is an integer number (885617010).

Almost surely, 2^12123112232 is an apocalyptic number.

It is an amenable number.

12123112232 is an abundant number, since it is smaller than the sum of its proper divisors (16216632088).

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

12123112232 is a wasteful number, since it uses less digits than its factorization.

12123112232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19680401 (or 19680397 counting only the distinct ones).

The product of its digits is 288, while the sum is 20.

Adding to 12123112232 its reverse (23221132121), we get a palindrome (35344244353).

The spelling of 12123112232 in words is "twelve billion, one hundred twenty-three million, one hundred twelve thousand, two hundred thirty-two".