144155031321 has 32 divisors (see below), whose sum is σ = 228553148160. Its totient is φ = 79074019584.

The previous prime is 144155031301. The next prime is 144155031323. The reversal of 144155031321 is 123130551441.

It is not a de Polignac number, because 144155031321 - 2⁹ = 144155030809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144155031323) 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 31 ways as a sum of consecutive naturals, for example, 578770 + ... + 789483.

It is an arithmetic number, because the mean of its divisors is an integer number (7142285880).

Almost surely, 2^144155031321 is an apocalyptic number.

It is an amenable number.

144155031321 is a deficient number, since it is larger than the sum of its proper divisors (84398116839).

144155031321 is a wasteful number, since it uses less digits than its factorization.

144155031321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1368465.

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 144155031321 its reverse (123130551441), we get a palindrome (267285582762).

The spelling of 144155031321 in words is "one hundred forty-four billion, one hundred fifty-five million, thirty-one thousand, three hundred twenty-one".