11115201065 has 8 divisors (see below), whose sum is σ = 13663564488. Its totient is φ = 8675278720.

The previous prime is 11115201061. The next prime is 11115201067. The reversal of 11115201065 is 56010251111.

It can be written as a sum of positive squares in 4 ways, for example, as 1858644544 + 9256556521 = 43112^2 + 96211^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11115201065 - 2² = 11115201061 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11115201065.

It is not an unprimeable number, because it can be changed into a prime (11115201061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27110042 + ... + 27110451.

It is an arithmetic number, because the mean of its divisors is an integer number (1707945561).

Almost surely, 2^11115201065 is an apocalyptic number.

It is an amenable number.

11115201065 is a deficient number, since it is larger than the sum of its proper divisors (2548363423).

11115201065 is an equidigital number, since it uses as much as digits as its factorization.

11115201065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54220539.

The product of its (nonzero) digits is 300, while the sum is 23.

Adding to 11115201065 its reverse (56010251111), we get a palindrome (67125452176).

The spelling of 11115201065 in words is "eleven billion, one hundred fifteen million, two hundred one thousand, sixty-five".