20200011100321 has 4 divisors (see below), whose sum is σ = 21753858108052. Its totient is φ = 18646164092592.

The previous prime is 20200011100271. The next prime is 20200011100351. The reversal of 20200011100321 is 12300111000202.

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 3218565169296 + 16981445931025 = 1794036^2 + 4120855^2 .

It is a cyclic number.

It is not a de Polignac number, because 20200011100321 - 2⁷ = 20200011100193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 1553847007717 = 20200011100321 / (2 + 0 + 2 + 0 + 0 + 0 + 1 + 1 + 1 + 0 + 0 + 3 + 2 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20200011100351) 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 in 3 ways as a sum of consecutive naturals, for example, 776923503846 + ... + 776923503871.

It is an arithmetic number, because the mean of its divisors is an integer number (5438464527013).

Almost surely, 2^{20200011100321} is an apocalyptic number.

It is an amenable number.

20200011100321 is a deficient number, since it is larger than the sum of its proper divisors (1553847007731).

20200011100321 is a wasteful number, since it uses less digits than its factorization.

20200011100321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1553847007730.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 20200011100321 its reverse (12300111000202), we get a palindrome (32500122100523).

The spelling of 20200011100321 in words is "twenty trillion, two hundred billion, eleven million, one hundred thousand, three hundred twenty-one".