12283523820 has 108 divisors (see below), whose sum is σ = 37564594704. Its totient is φ = 3249046080.

The previous prime is 12283523789. The next prime is 12283523827. The reversal of 12283523820 is 2832538221.

It is a happy number.

12283523820 is a `hidden beast` number, since 1 + 228 + 3 + 52 + 382 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (12283523827) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 2901105 + ... + 2905335.

Almost surely, 2^12283523820 is an apocalyptic number.

12283523820 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 12283523820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18782297352).

12283523820 is an abundant number, since it is smaller than the sum of its proper divisors (25281070884).

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

12283523820 is a wasteful number, since it uses less digits than its factorization.

12283523820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4500 (or 4368 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The spelling of 12283523820 in words is "twelve billion, two hundred eighty-three million, five hundred twenty-three thousand, eight hundred twenty".