11243215017 has 8 divisors (see below), whose sum is σ = 16656614880. Its totient is φ = 7495476660.

The previous prime is 11243214973. The next prime is 11243215019. The reversal of 11243215017 is 71051234211.

11243215017 is a `hidden beast` number, since 1 + 124 + 32 + 1 + 501 + 7 = 666.

11243215017 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11243215017 - 2⁷ = 11243214889 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 416415371 = 11243215017 / (1 + 1 + 2 + 4 + 3 + 2 + 1 + 5 + 0 + 1 + 7).

It is not an unprimeable number, because it can be changed into a prime (11243215019) 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 in 7 ways as a sum of consecutive naturals, for example, 208207659 + ... + 208207712.

It is an arithmetic number, because the mean of its divisors is an integer number (2082076860).

Almost surely, 2^11243215017 is an apocalyptic number.

It is an amenable number.

11243215017 is a deficient number, since it is larger than the sum of its proper divisors (5413399863).

11243215017 is an equidigital number, since it uses as much as digits as its factorization.

11243215017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416415380 (or 416415374 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

Adding to 11243215017 its reverse (71051234211), we get a palindrome (82294449228).

It can be divided in two parts, 112432 and 15017, that added together give a square (127449 = 357²).

The spelling of 11243215017 in words is "eleven billion, two hundred forty-three million, two hundred fifteen thousand, seventeen".