11211131320247 has 2 divisors, whose sum is σ = 11211131320248. Its totient is φ = 11211131320246.

The previous prime is 11211131320199. The next prime is 11211131320391. The reversal of 11211131320247 is 74202313111211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11211131320247 - 2¹⁴ = 11211131303863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11211131320447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5605565660123 + 5605565660124.

It is an arithmetic number, because the mean of its divisors is an integer number (5605565660124).

Almost surely, 2^{11211131320247} is an apocalyptic number.

11211131320247 is a deficient number, since it is larger than the sum of its proper divisors (1).

11211131320247 is an equidigital number, since it uses as much as digits as its factorization.

11211131320247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 29.

Adding to 11211131320247 its reverse (74202313111211), we get a palindrome (85413444431458).

The spelling of 11211131320247 in words is "eleven trillion, two hundred eleven billion, one hundred thirty-one million, three hundred twenty thousand, two hundred forty-seven".