12231302320 has 80 divisors (see below), whose sum is σ = 28743517440. Its totient is φ = 4840160000.

The previous prime is 12231302311. The next prime is 12231302329. The reversal of 12231302320 is 2320313221.

It is an interprime number because it is at equal distance from previous prime (12231302311) and next prime (12231302329).

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (12231302329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3760695 + ... + 3763945.

It is an arithmetic number, because the mean of its divisors is an integer number (359293968).

Almost surely, 2^12231302320 is an apocalyptic number.

12231302320 is a gapful number since it is divisible by the number (10) 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 12231302320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14371758720).

12231302320 is an abundant number, since it is smaller than the sum of its proper divisors (16512215120).

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

12231302320 is a wasteful number, since it uses less digits than its factorization.

12231302320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3754 (or 3748 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 12231302320 its reverse (2320313221), we get a palindrome (14551615541).

The spelling of 12231302320 in words is "twelve billion, two hundred thirty-one million, three hundred two thousand, three hundred twenty".