100021310230321 has 2 divisors, whose sum is σ = 100021310230322. Its totient is φ = 100021310230320.

The previous prime is 100021310230217. The next prime is 100021310230337. The reversal of 100021310230321 is 123032013120001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71833015390096 + 28188294840225 = 8475436^2 + 5309265^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100021310230321 is a prime.

It is not a weakly prime, because it can be changed into another prime (100021310230351) 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, 50010655115160 + 50010655115161.

It is an arithmetic number, because the mean of its divisors is an integer number (50010655115161).

Almost surely, 2^{100021310230321} is an apocalyptic number.

It is an amenable number.

100021310230321 is a deficient number, since it is larger than the sum of its proper divisors (1).

100021310230321 is an equidigital number, since it uses as much as digits as its factorization.

100021310230321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 100021310230321 its reverse (123032013120001), we get a palindrome (223053323350322).

The spelling of 100021310230321 in words is "one hundred trillion, twenty-one billion, three hundred ten million, two hundred thirty thousand, three hundred twenty-one".