11421728306 has 8 divisors (see below), whose sum is σ = 17155778160. Its totient is φ = 5703135588.

The previous prime is 11421728303. The next prime is 11421728317. The reversal of 11421728306 is 60382712411.

11421728306 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (11421728303) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3862436 + ... + 3865391.

It is an arithmetic number, because the mean of its divisors is an integer number (2144472270).

Almost surely, 2^11421728306 is an apocalyptic number.

11421728306 is a deficient number, since it is larger than the sum of its proper divisors (5734049854).

11421728306 is an equidigital number, since it uses as much as digits as its factorization.

11421728306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7728568.

The product of its (nonzero) digits is 16128, while the sum is 35.

The spelling of 11421728306 in words is "eleven billion, four hundred twenty-one million, seven hundred twenty-eight thousand, three hundred six".