20212223203 has 2 divisors, whose sum is σ = 20212223204. Its totient is φ = 20212223202.

The previous prime is 20212223183. The next prime is 20212223257. The reversal of 20212223203 is 30232221202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20212223203 - 2⁹ = 20212222691 is a prime.

It is not a weakly prime, because it can be changed into another prime (20212221203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10106111601 + 10106111602.

It is an arithmetic number, because the mean of its divisors is an integer number (10106111602).

Almost surely, 2^20212223203 is an apocalyptic number.

20212223203 is a deficient number, since it is larger than the sum of its proper divisors (1).

20212223203 is an equidigital number, since it uses as much as digits as its factorization.

20212223203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 20212223203 its reverse (30232221202), we get a palindrome (50444444405).

The spelling of 20212223203 in words is "twenty billion, two hundred twelve million, two hundred twenty-three thousand, two hundred three".