100021310210321 has 4 divisors (see below), whose sum is σ = 102724588864692. Its totient is φ = 97318031555952.

The previous prime is 100021310210279. The next prime is 100021310210333. The reversal of 100021310210321 is 123012013120001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 48340106817025 + 51681203393296 = 6952705^2 + 7188964^2 .

It is a cyclic number.

It is not a de Polignac number, because 100021310210321 - 2¹⁰ = 100021310209297 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 100021310210321.

It is not an unprimeable number, because it can be changed into a prime (100021310230321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1351639327130 + ... + 1351639327203.

It is an arithmetic number, because the mean of its divisors is an integer number (25681147216173).

Almost surely, 2^{100021310210321} is an apocalyptic number.

It is an amenable number.

100021310210321 is a deficient number, since it is larger than the sum of its proper divisors (2703278654371).

100021310210321 is an equidigital number, since it uses as much as digits as its factorization.

100021310210321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2703278654370.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 100021310210321 its reverse (123012013120001), we get a palindrome (223033323330322).

The spelling of 100021310210321 in words is "one hundred trillion, twenty-one billion, three hundred ten million, two hundred ten thousand, three hundred twenty-one".