144423421220 has 48 divisors (see below), whose sum is σ = 326872878528. Its totient is φ = 53284141440.

The previous prime is 144423421189. The next prime is 144423421237. The reversal of 144423421220 is 22124324441.

It is a happy number.

144423421220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120527 + ... + 550793.

It is an arithmetic number, because the mean of its divisors is an integer number (6809851636).

Almost surely, 2^144423421220 is an apocalyptic number.

144423421220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144423421220 is an abundant number, since it is smaller than the sum of its proper divisors (182449457308).

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

144423421220 is a wasteful number, since it uses less digits than its factorization.

144423421220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431580 (or 431578 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 144423421220 its reverse (22124324441), we get a palindrome (166547745661).

The spelling of 144423421220 in words is "one hundred forty-four billion, four hundred twenty-three million, four hundred twenty-one thousand, two hundred twenty".