20213203211 has 2 divisors, whose sum is σ = 20213203212. Its totient is φ = 20213203210.

The previous prime is 20213203189. The next prime is 20213203259. The reversal of 20213203211 is 11230231202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20213203211 - 2¹⁴ = 20213186827 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20213203211.

It is not a weakly prime, because it can be changed into another prime (20213200211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10106601605 + 10106601606.

It is an arithmetic number, because the mean of its divisors is an integer number (10106601606).

Almost surely, 2^20213203211 is an apocalyptic number.

20213203211 is a deficient number, since it is larger than the sum of its proper divisors (1).

20213203211 is an equidigital number, since it uses as much as digits as its factorization.

20213203211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20213203211 its reverse (11230231202), we get a palindrome (31443434413).

The spelling of 20213203211 in words is "twenty billion, two hundred thirteen million, two hundred three thousand, two hundred eleven".