12320223232 has 52 divisors (see below), whose sum is σ = 24666377400. Its totient is φ = 6152880128.

The previous prime is 12320223229. The next prime is 12320223233. The reversal of 12320223232 is 23232202321.

It is not an unprimeable number, because it can be changed into a prime (12320223233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5868519 + ... + 5870617.

Almost surely, 2^12320223232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12320223232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12333188700).

12320223232 is an abundant number, since it is smaller than the sum of its proper divisors (12346154168).

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

12320223232 is an equidigital number, since it uses as much as digits as its factorization.

12320223232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3556 (or 3534 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 12320223232 its reverse (23232202321), we get a palindrome (35552425553).

The spelling of 12320223232 in words is "twelve billion, three hundred twenty million, two hundred twenty-three thousand, two hundred thirty-two".