4144321331 has 4 divisors (see below), whose sum is σ = 4159728000. Its totient is φ = 4128914664.

The previous prime is 4144321327. The next prime is 4144321339. The reversal of 4144321331 is 1331234414.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 4144321331 - 2² = 4144321327 is a prime.

It is a super-2 number, since 2×4144321331² = 34350798589163223122, which contains 22 as substring.

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 4144321331.

It is not an unprimeable number, because it can be changed into a prime (4144321339) 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 3 ways as a sum of consecutive naturals, for example, 7702931 + ... + 7703468.

It is an arithmetic number, because the mean of its divisors is an integer number (1039932000).

Almost surely, 2^4144321331 is an apocalyptic number.

4144321331 is a deficient number, since it is larger than the sum of its proper divisors (15406669).

4144321331 is a wasteful number, since it uses less digits than its factorization.

4144321331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15406668.

The product of its digits is 3456, while the sum is 26.

The square root of 4144321331 is about 64376.4035264475. The cubic root of 4144321331 is about 1606.2672588374.

Adding to 4144321331 its reverse (1331234414), we get a palindrome (5475555745).

The spelling of 4144321331 in words is "four billion, one hundred forty-four million, three hundred twenty-one thousand, three hundred thirty-one".