203321320332001 has 2 divisors, whose sum is σ = 203321320332002. Its totient is φ = 203321320332000.

The previous prime is 203321320331939. The next prime is 203321320332023. The reversal of 203321320332001 is 100233023123302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 193128721349776 + 10192598982225 = 13897076^2 + 3192585^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203321320332001 is a prime.

It is not a weakly prime, because it can be changed into another prime (203321320332101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101660660166000 + 101660660166001.

It is an arithmetic number, because the mean of its divisors is an integer number (101660660166001).

Almost surely, 2^{203321320332001} is an apocalyptic number.

It is an amenable number.

203321320332001 is a deficient number, since it is larger than the sum of its proper divisors (1).

203321320332001 is an equidigital number, since it uses as much as digits as its factorization.

203321320332001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 203321320332001 its reverse (100233023123302), we get a palindrome (303554343455303).

The spelling of 203321320332001 in words is "two hundred three trillion, three hundred twenty-one billion, three hundred twenty million, three hundred thirty-two thousand, one".