100312022113021 has 4 divisors (see below), whose sum is σ = 100950952190332. Its totient is φ = 99673092035712.

The previous prime is 100312022113019. The next prime is 100312022113169. The reversal of 100312022113021 is 120311220213001.

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 63305653555225 + 37006368557796 = 7956485^2 + 6083286^2 .

It is a cyclic number.

It is not a de Polignac number, because 100312022113021 - 2¹ = 100312022113019 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 100312022113021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100312022113001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 319465038420 + ... + 319465038733.

It is an arithmetic number, because the mean of its divisors is an integer number (25237738047583).

Almost surely, 2^{100312022113021} is an apocalyptic number.

It is an amenable number.

100312022113021 is a deficient number, since it is larger than the sum of its proper divisors (638930077311).

100312022113021 is an equidigital number, since it uses as much as digits as its factorization.

100312022113021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638930077310.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 100312022113021 its reverse (120311220213001), we get a palindrome (220623242326022).

The spelling of 100312022113021 in words is "one hundred trillion, three hundred twelve billion, twenty-two million, one hundred thirteen thousand, twenty-one".