12312232332 has 96 divisors (see below), whose sum is σ = 31209588480. Its totient is φ = 3764517120.

The previous prime is 12312232291. The next prime is 12312232349. The reversal of 12312232332 is 23323221321.

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 (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1776538 + ... + 1783454.

It is an arithmetic number, because the mean of its divisors is an integer number (325099880).

Almost surely, 2^12312232332 is an apocalyptic number.

12312232332 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 12312232332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15604794240).

12312232332 is an abundant number, since it is smaller than the sum of its proper divisors (18897356148).

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

12312232332 is a wasteful number, since it uses less digits than its factorization.

12312232332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7191 (or 7189 counting only the distinct ones).

The product of its digits is 2592, while the sum is 24.

Adding to 12312232332 its reverse (23323221321), we get a palindrome (35635453653).

The spelling of 12312232332 in words is "twelve billion, three hundred twelve million, two hundred thirty-two thousand, three hundred thirty-two".