203245601329 has 2 divisors, whose sum is σ = 203245601330. Its totient is φ = 203245601328.

The previous prime is 203245601327. The next prime is 203245601389. The reversal of 203245601329 is 923106542302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 203199903729 + 45697600 = 450777^2 + 6760^2 .

It is a cyclic number.

It is not a de Polignac number, because 203245601329 - 2¹ = 203245601327 is a prime.

Together with 203245601327, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (203245601323) 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, 101622800664 + 101622800665.

It is an arithmetic number, because the mean of its divisors is an integer number (101622800665).

Almost surely, 2^203245601329 is an apocalyptic number.

It is an amenable number.

203245601329 is a deficient number, since it is larger than the sum of its proper divisors (1).

203245601329 is an equidigital number, since it uses as much as digits as its factorization.

203245601329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 37.

The spelling of 203245601329 in words is "two hundred three billion, two hundred forty-five million, six hundred one thousand, three hundred twenty-nine".