203211395029 has 2 divisors, whose sum is σ = 203211395030. Its totient is φ = 203211395028.

The previous prime is 203211395027. The next prime is 203211395053. The reversal of 203211395029 is 920593112302.

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., 182074596804 + 21136798225 = 426702^2 + 145385^2 .

It is a cyclic number.

It is not a de Polignac number, because 203211395029 - 2¹ = 203211395027 is a prime.

Together with 203211395027, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203211395027) 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, 101605697514 + 101605697515.

It is an arithmetic number, because the mean of its divisors is an integer number (101605697515).

Almost surely, 2^203211395029 is an apocalyptic number.

It is an amenable number.

203211395029 is a deficient number, since it is larger than the sum of its proper divisors (1).

203211395029 is an equidigital number, since it uses as much as digits as its factorization.

203211395029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29160, while the sum is 37.

The spelling of 203211395029 in words is "two hundred three billion, two hundred eleven million, three hundred ninety-five thousand, twenty-nine".