12111331232 has 96 divisors (see below), whose sum is σ = 32014652544. Its totient is φ = 4355712000.

The previous prime is 12111331217. The next prime is 12111331241. The reversal of 12111331232 is 23213311121.

It is a happy number.

12111331232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12111331232² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157019 + ... + 221082.

It is an arithmetic number, because the mean of its divisors is an integer number (333485964).

Almost surely, 2^12111331232 is an apocalyptic number.

It is an amenable number.

12111331232 is an abundant number, since it is smaller than the sum of its proper divisors (19903321312).

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

12111331232 is a wasteful number, since it uses less digits than its factorization.

12111331232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378142 (or 378134 counting only the distinct ones).

The product of its digits is 216, while the sum is 20.

Adding to 12111331232 its reverse (23213311121), we get a palindrome (35324642353).

It can be divided in two parts, 12111 and 331232, that added together give a palindrome (343343).

The spelling of 12111331232 in words is "twelve billion, one hundred eleven million, three hundred thirty-one thousand, two hundred thirty-two".