143323402121 has 2 divisors, whose sum is σ = 143323402122. Its totient is φ = 143323402120.

The previous prime is 143323402009. The next prime is 143323402133. The reversal of 143323402121 is 121204323341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80763387721 + 62560014400 = 284189^2 + 250120^2 .

It is an emirp because it is prime and its reverse (121204323341) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 143323402121 - 2¹⁰ = 143323401097 is a prime.

It is not a weakly prime, because it can be changed into another prime (143323401121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71661701060 + 71661701061.

It is an arithmetic number, because the mean of its divisors is an integer number (71661701061).

Almost surely, 2^143323402121 is an apocalyptic number.

It is an amenable number.

143323402121 is a deficient number, since it is larger than the sum of its proper divisors (1).

143323402121 is an equidigital number, since it uses as much as digits as its factorization.

143323402121 is an odious number, because the sum of its binary digits is odd.

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

Adding to 143323402121 its reverse (121204323341), we get a palindrome (264527725462).

The spelling of 143323402121 in words is "one hundred forty-three billion, three hundred twenty-three million, four hundred two thousand, one hundred twenty-one".