143441234221 has 2 divisors, whose sum is σ = 143441234222. Its totient is φ = 143441234220.

The previous prime is 143441234213. The next prime is 143441234231. The reversal of 143441234221 is 122432144341.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 140820818121 + 2620416100 = 375261^2 + 51190^2 .

It is a cyclic number.

It is not a de Polignac number, because 143441234221 - 2³ = 143441234213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143441234201) 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 as a sum of consecutive naturals, namely, 71720617110 + 71720617111.

It is an arithmetic number, because the mean of its divisors is an integer number (71720617111).

Almost surely, 2^143441234221 is an apocalyptic number.

It is an amenable number.

143441234221 is a deficient number, since it is larger than the sum of its proper divisors (1).

143441234221 is an equidigital number, since it uses as much as digits as its factorization.

143441234221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18432, while the sum is 31.

Adding to 143441234221 its reverse (122432144341), we get a palindrome (265873378562).

The spelling of 143441234221 in words is "one hundred forty-three billion, four hundred forty-one million, two hundred thirty-four thousand, two hundred twenty-one".