200121321100003 has 16 divisors (see below), whose sum is σ = 201783252736000. Its totient is φ = 198466039062720.

The previous prime is 200121321099979. The next prime is 200121321100009. The reversal of 200121321100003 is 300001123121002.

It is a cyclic number.

It is not a de Polignac number, because 200121321100003 - 2¹⁷ = 200121320968931 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 200121321100003.

It is not an unprimeable number, because it can be changed into a prime (200121321100009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 987708238 + ... + 987910828.

It is an arithmetic number, because the mean of its divisors is an integer number (12611453296000).

Almost surely, 2^{200121321100003} is an apocalyptic number.

200121321100003 is a deficient number, since it is larger than the sum of its proper divisors (1661931635997).

200121321100003 is a wasteful number, since it uses less digits than its factorization.

200121321100003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218962.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 200121321100003 its reverse (300001123121002), we get a palindrome (500122444221005).

The spelling of 200121321100003 in words is "two hundred trillion, one hundred twenty-one billion, three hundred twenty-one million, one hundred thousand, three".