20144211321 has 16 divisors (see below), whose sum is σ = 28927781120. Its totient is φ = 12395255040.

The previous prime is 20144211287. The next prime is 20144211361. The reversal of 20144211321 is 12311244102.

It is not a de Polignac number, because 20144211321 - 2¹¹ = 20144209273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20144211361) 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, 572640 + ... + 606798.

It is an arithmetic number, because the mean of its divisors is an integer number (1807986320).

Almost surely, 2^20144211321 is an apocalyptic number.

It is an amenable number.

20144211321 is a deficient number, since it is larger than the sum of its proper divisors (8783569799).

20144211321 is a wasteful number, since it uses less digits than its factorization.

20144211321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49296.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 20144211321 its reverse (12311244102), we get a palindrome (32455455423).

The spelling of 20144211321 in words is "twenty billion, one hundred forty-four million, two hundred eleven thousand, three hundred twenty-one".