11205445117 has 2 divisors, whose sum is σ = 11205445118. Its totient is φ = 11205445116.

The previous prime is 11205445091. The next prime is 11205445183. The reversal of 11205445117 is 71154450211.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11052527161 + 152917956 = 105131^2 + 12366^2 .

It is a cyclic number.

It is not a de Polignac number, because 11205445117 - 2¹⁵ = 11205412349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11205442117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5602722558 + 5602722559.

It is an arithmetic number, because the mean of its divisors is an integer number (5602722559).

Almost surely, 2^11205445117 is an apocalyptic number.

It is an amenable number.

11205445117 is a deficient number, since it is larger than the sum of its proper divisors (1).

11205445117 is an equidigital number, since it uses as much as digits as its factorization.

11205445117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5600, while the sum is 31.

Adding to 11205445117 its reverse (71154450211), we get a palindrome (82359895328).

The spelling of 11205445117 in words is "eleven billion, two hundred five million, four hundred forty-five thousand, one hundred seventeen".