211031003243 has 2 divisors, whose sum is σ = 211031003244. Its totient is φ = 211031003242.

The previous prime is 211031003167. The next prime is 211031003311. The reversal of 211031003243 is 342300130112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 211031003243 - 2²² = 211026808939 is a prime.

It is not a weakly prime, because it can be changed into another prime (211031803243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105515501621 + 105515501622.

It is an arithmetic number, because the mean of its divisors is an integer number (105515501622).

Almost surely, 2^211031003243 is an apocalyptic number.

211031003243 is a deficient number, since it is larger than the sum of its proper divisors (1).

211031003243 is an equidigital number, since it uses as much as digits as its factorization.

211031003243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 211031003243 its reverse (342300130112), we get a palindrome (553331133355).

The spelling of 211031003243 in words is "two hundred eleven billion, thirty-one million, three thousand, two hundred forty-three".