20941808203 has 2 divisors, whose sum is σ = 20941808204. Its totient is φ = 20941808202.

The previous prime is 20941808197. The next prime is 20941808263. The reversal of 20941808203 is 30280814902.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20941808203 - 2¹⁷ = 20941677131 is a prime.

It is a super-2 number, since 2×20941808203² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20941808263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10470904101 + 10470904102.

It is an arithmetic number, because the mean of its divisors is an integer number (10470904102).

Almost surely, 2^20941808203 is an apocalyptic number.

20941808203 is a deficient number, since it is larger than the sum of its proper divisors (1).

20941808203 is an equidigital number, since it uses as much as digits as its factorization.

20941808203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 37.

The spelling of 20941808203 in words is "twenty billion, nine hundred forty-one million, eight hundred eight thousand, two hundred three".