12302243532 has 72 divisors (see below), whose sum is σ = 31689665280. Its totient is φ = 4023233280.

The previous prime is 12302243531. The next prime is 12302243537. The reversal of 12302243532 is 23534220321.

12302243532 is a `hidden beast` number, since 1 + 2 + 302 + 2 + 4 + 353 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 12302243496 and 12302243505.

It is not an unprimeable number, because it can be changed into a prime (12302243531) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 489694 + ... + 514202.

It is an arithmetic number, because the mean of its divisors is an integer number (440134240).

Almost surely, 2^12302243532 is an apocalyptic number.

12302243532 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 12302243532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15844832640).

12302243532 is an abundant number, since it is smaller than the sum of its proper divisors (19387421748).

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

12302243532 is a wasteful number, since it uses less digits than its factorization.

12302243532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24783 (or 24778 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

Adding to 12302243532 its reverse (23534220321), we get a palindrome (35836463853).

The spelling of 12302243532 in words is "twelve billion, three hundred two million, two hundred forty-three thousand, five hundred thirty-two".