143212443004021 has 2 divisors, whose sum is σ = 143212443004022. Its totient is φ = 143212443004020.

The previous prime is 143212443003947. The next prime is 143212443004039. The reversal of 143212443004021 is 120400344212341.

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., 72234530828100 + 70977912175921 = 8499090^2 + 8424839^2 .

It is an emirp because it is prime and its reverse (120400344212341) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 143212443004021 - 2¹³ = 143212442995829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143212443002021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71606221502010 + 71606221502011.

It is an arithmetic number, because the mean of its divisors is an integer number (71606221502011).

Almost surely, 2^{143212443004021} is an apocalyptic number.

It is an amenable number.

143212443004021 is a deficient number, since it is larger than the sum of its proper divisors (1).

143212443004021 is an equidigital number, since it uses as much as digits as its factorization.

143212443004021 is an evil number, because the sum of its binary digits is even.

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

Adding to 143212443004021 its reverse (120400344212341), we get a palindrome (263612787216362).

The spelling of 143212443004021 in words is "one hundred forty-three trillion, two hundred twelve billion, four hundred forty-three million, four thousand, twenty-one".