12311333232 has 160 divisors (see below), whose sum is σ = 35736712704. Its totient is φ = 3619353600.

The previous prime is 12311333231. The next prime is 12311333249. The reversal of 12311333232 is 23233311321.

It is a Harshad number since it is a multiple of its sum of digits (24).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12311333231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9005413 + ... + 9006779.

Almost surely, 2^12311333232 is an apocalyptic number.

12311333232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12311333232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17868356352).

12311333232 is an abundant number, since it is smaller than the sum of its proper divisors (23425379472).

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

12311333232 is a wasteful number, since it uses less digits than its factorization.

12311333232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1887 (or 1881 counting only the distinct ones).

The product of its digits is 1944, while the sum is 24.

Adding to 12311333232 its reverse (23233311321), we get a palindrome (35544644553).

It can be divided in two parts, 12311 and 333232, that added together give a palindrome (345543).

The spelling of 12311333232 in words is "twelve billion, three hundred eleven million, three hundred thirty-three thousand, two hundred thirty-two".