211303113247 has 2 divisors, whose sum is σ = 211303113248. Its totient is φ = 211303113246.

The previous prime is 211303113233. The next prime is 211303113269. The reversal of 211303113247 is 742311303112.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211303113247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211303113647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105651556623 + 105651556624.

It is an arithmetic number, because the mean of its divisors is an integer number (105651556624).

Almost surely, 2^211303113247 is an apocalyptic number.

211303113247 is a deficient number, since it is larger than the sum of its proper divisors (1).

211303113247 is an equidigital number, since it uses as much as digits as its factorization.

211303113247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 28.

Adding to 211303113247 its reverse (742311303112), we get a palindrome (953614416359).

The spelling of 211303113247 in words is "two hundred eleven billion, three hundred three million, one hundred thirteen thousand, two hundred forty-seven".