211312022203 has 2 divisors, whose sum is σ = 211312022204. Its totient is φ = 211312022202.

The previous prime is 211312022149. The next prime is 211312022237. The reversal of 211312022203 is 302220213112.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211312022203 is a prime.

It is not a weakly prime, because it can be changed into another prime (211312322203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105656011101 + 105656011102.

It is an arithmetic number, because the mean of its divisors is an integer number (105656011102).

Almost surely, 2^211312022203 is an apocalyptic number.

211312022203 is a deficient number, since it is larger than the sum of its proper divisors (1).

211312022203 is an equidigital number, since it uses as much as digits as its factorization.

211312022203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 211312022203 its reverse (302220213112), we get a palindrome (513532235315).

The spelling of 211312022203 in words is "two hundred eleven billion, three hundred twelve million, twenty-two thousand, two hundred three".