20001020210203 has 2 divisors, whose sum is σ = 20001020210204. Its totient is φ = 20001020210202.

The previous prime is 20001020210191. The next prime is 20001020210221. The reversal of 20001020210203 is 30201202010002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20001020210203 - 2¹³ = 20001020202011 is a prime.

It is not a weakly prime, because it can be changed into another prime (20001020310203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000510105101 + 10000510105102.

It is an arithmetic number, because the mean of its divisors is an integer number (10000510105102).

Almost surely, 2^{20001020210203} is an apocalyptic number.

20001020210203 is a deficient number, since it is larger than the sum of its proper divisors (1).

20001020210203 is an equidigital number, since it uses as much as digits as its factorization.

20001020210203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 20001020210203 its reverse (30201202010002), we get a palindrome (50202222220205).

The spelling of 20001020210203 in words is "twenty trillion, one billion, twenty million, two hundred ten thousand, two hundred three".