1144213330321 has 4 divisors (see below), whose sum is σ = 1145226806500. Its totient is φ = 1143199854144.

The previous prime is 1144213330307. The next prime is 1144213330357. The reversal of 1144213330321 is 1230333124411.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 86987244096 + 1057226086225 = 294936^2 + 1028215^2 .

It is a cyclic number.

It is not a de Polignac number, because 1144213330321 - 2⁵ = 1144213330289 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 1144213330321.

It is not an unprimeable number, because it can be changed into a prime (1144213330301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 506736396 + ... + 506738653.

It is an arithmetic number, because the mean of its divisors is an integer number (286306701625).

Almost surely, 2^{1144213330321} is an apocalyptic number.

It is an amenable number.

1144213330321 is a deficient number, since it is larger than the sum of its proper divisors (1013476179).

1144213330321 is a wasteful number, since it uses less digits than its factorization.

1144213330321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013476178.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 1144213330321 its reverse (1230333124411), we get a palindrome (2374546454732).

The spelling of 1144213330321 in words is "one trillion, one hundred forty-four billion, two hundred thirteen million, three hundred thirty thousand, three hundred twenty-one".