11013206865 has 16 divisors (see below), whose sum is σ = 17689701888. Its totient is φ = 5850853376.

The previous prime is 11013206839. The next prime is 11013206881. The reversal of 11013206865 is 56860231011.

It is a cyclic number.

It is not a de Polignac number, because 11013206865 - 2⁹ = 11013206353 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1424577 + ... + 1432286.

It is an arithmetic number, because the mean of its divisors is an integer number (1105606368).

Almost surely, 2^11013206865 is an apocalyptic number.

11013206865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11013206865 is a deficient number, since it is larger than the sum of its proper divisors (6676495023).

11013206865 is a wasteful number, since it uses less digits than its factorization.

11013206865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2857128.

The product of its (nonzero) digits is 8640, while the sum is 33.

Adding to 11013206865 its reverse (56860231011), we get a palindrome (67873437876).

The spelling of 11013206865 in words is "eleven billion, thirteen million, two hundred six thousand, eight hundred sixty-five".