11100120247 has 2 divisors, whose sum is σ = 11100120248. Its totient is φ = 11100120246.

The previous prime is 11100120221. The next prime is 11100120293. The reversal of 11100120247 is 74202100111.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11100120247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11100120217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5550060123 + 5550060124.

It is an arithmetic number, because the mean of its divisors is an integer number (5550060124).

Almost surely, 2^11100120247 is an apocalyptic number.

11100120247 is a deficient number, since it is larger than the sum of its proper divisors (1).

11100120247 is an equidigital number, since it uses as much as digits as its factorization.

11100120247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112, while the sum is 19.

Adding to 11100120247 its reverse (74202100111), we get a palindrome (85302220358).

The spelling of 11100120247 in words is "eleven billion, one hundred million, one hundred twenty thousand, two hundred forty-seven".