200121211102303 has 2 divisors, whose sum is σ = 200121211102304. Its totient is φ = 200121211102302.

The previous prime is 200121211102261. The next prime is 200121211102327. The reversal of 200121211102303 is 303201112121002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 200121211102303 - 2¹³ = 200121211094111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200121211102003) 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, 100060605551151 + 100060605551152.

It is an arithmetic number, because the mean of its divisors is an integer number (100060605551152).

Almost surely, 2^{200121211102303} is an apocalyptic number.

200121211102303 is a deficient number, since it is larger than the sum of its proper divisors (1).

200121211102303 is an equidigital number, since it uses as much as digits as its factorization.

200121211102303 is an odious number, because the sum of its binary digits is odd.

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

Adding to 200121211102303 its reverse (303201112121002), we get a palindrome (503322323223305).

The spelling of 200121211102303 in words is "two hundred trillion, one hundred twenty-one billion, two hundred eleven million, one hundred two thousand, three hundred three".