12302232320 has 144 divisors (see below), whose sum is σ = 33743071488. Its totient is φ = 4209684480.

The previous prime is 12302232277. The next prime is 12302232329. The reversal of 12302232320 is 2323220321.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 12302232292 and 12302232301.

It is not an unprimeable number, because it can be changed into a prime (12302232329) 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, 6190367 + ... + 6192353.

Almost surely, 2^12302232320 is an apocalyptic number.

12302232320 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 12302232320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16871535744).

12302232320 is an abundant number, since it is smaller than the sum of its proper divisors (21440839168).

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

12302232320 is an equidigital number, since it uses as much as digits as its factorization.

12302232320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2706 (or 2692 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 12302232320 its reverse (2323220321), we get a palindrome (14625452641).

The spelling of 12302232320 in words is "twelve billion, three hundred two million, two hundred thirty-two thousand, three hundred twenty".