144240112320021 has 16 divisors (see below), whose sum is σ = 226258999718400. Its totient is φ = 90503599886784.

The previous prime is 144240112319909. The next prime is 144240112320149. The reversal of 144240112320021 is 120023211042441.

144240112320021 is a `hidden beast` number, since 1 + 4 + 4 + 2 + 401 + 1 + 232 + 0 + 0 + 21 = 666.

It is not a de Polignac number, because 144240112320021 - 2¹³ = 144240112311829 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144240112220021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157124304901 + ... + 157124305818.

It is an arithmetic number, because the mean of its divisors is an integer number (14141187482400).

Almost surely, 2^{144240112320021} is an apocalyptic number.

It is an amenable number.

144240112320021 is a deficient number, since it is larger than the sum of its proper divisors (82018887398379).

144240112320021 is a wasteful number, since it uses less digits than its factorization.

144240112320021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314248610745 (or 314248610739 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 144240112320021 its reverse (120023211042441), we get a palindrome (264263323362462).

The spelling of 144240112320021 in words is "one hundred forty-four trillion, two hundred forty billion, one hundred twelve million, three hundred twenty thousand, twenty-one".