401243430213289 has 2 divisors, whose sum is σ = 401243430213290. Its totient is φ = 401243430213288.

The previous prime is 401243430213271. The next prime is 401243430213337. The reversal of 401243430213289 is 982312034342104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 229663113529600 + 171580316683689 = 15154640^2 + 13098867^2 .

It is a cyclic number.

It is not a de Polignac number, because 401243430213289 - 2²¹ = 401243428116137 is a prime.

It is not a weakly prime, because it can be changed into another prime (401243430211289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200621715106644 + 200621715106645.

It is an arithmetic number, because the mean of its divisors is an integer number (200621715106645).

Almost surely, 2^{401243430213289} is an apocalyptic number.

It is an amenable number.

401243430213289 is a deficient number, since it is larger than the sum of its proper divisors (1).

401243430213289 is an equidigital number, since it uses as much as digits as its factorization.

401243430213289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 995328, while the sum is 46.

The spelling of 401243430213289 in words is "four hundred one trillion, two hundred forty-three billion, four hundred thirty million, two hundred thirteen thousand, two hundred eighty-nine".