12011032320 has 144 divisors (see below), whose sum is σ = 43840366080. Its totient is φ = 2745372672.

The previous prime is 12011032301. The next prime is 12011032333. The reversal of 12011032320 is 2323011021.

12011032320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12011032320.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196540 + ... + 250299.

Almost surely, 2^12011032320 is an apocalyptic number.

12011032320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12011032320 is an abundant number, since it is smaller than the sum of its proper divisors (31829333760).

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

12011032320 is an equidigital number, since it uses as much as digits as its factorization.

12011032320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446870 (or 446856 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 12011032320 its reverse (2323011021), we get a palindrome (14334043341).

The spelling of 12011032320 in words is "twelve billion, eleven million, thirty-two thousand, three hundred twenty".