144171108021 has 32 divisors (see below), whose sum is σ = 210439987200. Its totient is φ = 87424551936.

The previous prime is 144171107981. The next prime is 144171108023. The reversal of 144171108021 is 120801171441.

It is not a de Polignac number, because 144171108021 - 2⁶ = 144171107957 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 144171108021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144171108023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24780 + ... + 537546.

It is an arithmetic number, because the mean of its divisors is an integer number (6576249600).

Almost surely, 2^144171108021 is an apocalyptic number.

It is an amenable number.

144171108021 is a deficient number, since it is larger than the sum of its proper divisors (66268879179).

144171108021 is a wasteful number, since it uses less digits than its factorization.

144171108021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512973.

The product of its (nonzero) digits is 1792, while the sum is 30.

Adding to 144171108021 its reverse (120801171441), we get a palindrome (264972279462).

The spelling of 144171108021 in words is "one hundred forty-four billion, one hundred seventy-one million, one hundred eight thousand, twenty-one".