1443134321 has 2 divisors, whose sum is σ = 1443134322. Its totient is φ = 1443134320.

The previous prime is 1443134261. The next prime is 1443134353. The reversal of 1443134321 is 1234313441.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 967894321 + 475240000 = 31111^2 + 21800^2 .

It is a cyclic number.

It is not a de Polignac number, because 1443134321 - 2⁶ = 1443134257 is a prime.

It is not a weakly prime, because it can be changed into another prime (1443134621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721567160 + 721567161.

It is an arithmetic number, because the mean of its divisors is an integer number (721567161).

Almost surely, 2^1443134321 is an apocalyptic number.

It is an amenable number.

1443134321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1443134321 is an equidigital number, since it uses as much as digits as its factorization.

1443134321 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1443134321 is about 37988.6077791751. The cubic root of 1443134321 is about 1130.0619489884.

Adding to 1443134321 its reverse (1234313441), we get a palindrome (2677447762).

The spelling of 1443134321 in words is "one billion, four hundred forty-three million, one hundred thirty-four thousand, three hundred twenty-one".