12113323212 has 24 divisors (see below), whose sum is σ = 28268142336. Its totient is φ = 4037242768.

The previous prime is 12113323147. The next prime is 12113323241. The reversal of 12113323212 is 21232331121.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34633 + ... + 159455.

It is an arithmetic number, because the mean of its divisors is an integer number (1177839264).

Almost surely, 2^12113323212 is an apocalyptic number.

12113323212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12113323212 is an abundant number, since it is smaller than the sum of its proper divisors (16154819124).

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

12113323212 is a wasteful number, since it uses less digits than its factorization.

12113323212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132917 (or 132915 counting only the distinct ones).

The product of its digits is 432, while the sum is 21.

Adding to 12113323212 its reverse (21232331121), we get a palindrome (33345654333).

The spelling of 12113323212 in words is "twelve billion, one hundred thirteen million, three hundred twenty-three thousand, two hundred twelve".