144320021011 has 8 divisors (see below), whose sum is σ = 146191961600. Its totient is φ = 142449208200.

The previous prime is 144320020993. The next prime is 144320021023. The reversal of 144320021011 is 110120023441.

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

It is a cyclic number.

It is not a de Polignac number, because 144320021011 - 2⁵ = 144320020979 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 144320021011.

It is not an unprimeable number, because it can be changed into a prime (144320021611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22815 + ... + 537736.

It is an arithmetic number, because the mean of its divisors is an integer number (18273995200).

Almost surely, 2^144320021011 is an apocalyptic number.

144320021011 is a deficient number, since it is larger than the sum of its proper divisors (1871940589).

144320021011 is an equidigital number, since it uses as much as digits as its factorization.

144320021011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563889.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 144320021011 its reverse (110120023441), we get a palindrome (254440044452).

The spelling of 144320021011 in words is "one hundred forty-four billion, three hundred twenty million, twenty-one thousand, eleven".