211242323203 has 2 divisors, whose sum is σ = 211242323204. Its totient is φ = 211242323202.

The previous prime is 211242323147. The next prime is 211242323213. The reversal of 211242323203 is 302323242112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 211242323203 - 2¹⁷ = 211242192131 is a prime.

It is a super-2 number, since 2×211242323203² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (211242323213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105621161601 + 105621161602.

It is an arithmetic number, because the mean of its divisors is an integer number (105621161602).

Almost surely, 2^211242323203 is an apocalyptic number.

211242323203 is a deficient number, since it is larger than the sum of its proper divisors (1).

211242323203 is an equidigital number, since it uses as much as digits as its factorization.

211242323203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 211242323203 its reverse (302323242112), we get a palindrome (513565565315).

The spelling of 211242323203 in words is "two hundred eleven billion, two hundred forty-two million, three hundred twenty-three thousand, two hundred three".