100203330323321 has 2 divisors, whose sum is σ = 100203330323322. Its totient is φ = 100203330323320.

The previous prime is 100203330323303. The next prime is 100203330323333. The reversal of 100203330323321 is 123323033302001.

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., 82018743216400 + 18184587106921 = 9056420^2 + 4264339^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100203330323321 is a prime.

It is not a weakly prime, because it can be changed into another prime (100203330323821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50101665161660 + 50101665161661.

It is an arithmetic number, because the mean of its divisors is an integer number (50101665161661).

Almost surely, 2^{100203330323321} is an apocalyptic number.

It is an amenable number.

100203330323321 is a deficient number, since it is larger than the sum of its proper divisors (1).

100203330323321 is an equidigital number, since it uses as much as digits as its factorization.

100203330323321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 26.

Adding to 100203330323321 its reverse (123323033302001), we get a palindrome (223526363625322).

The spelling of 100203330323321 in words is "one hundred trillion, two hundred three billion, three hundred thirty million, three hundred twenty-three thousand, three hundred twenty-one".