1150011101165 has 4 divisors (see below), whose sum is σ = 1380013321404. Its totient is φ = 920008880928.

The previous prime is 1150011101153. The next prime is 1150011101189. The reversal of 1150011101165 is 5611011100511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 835664737609 + 314346363556 = 914147^2 + 560666^2 .

It is a cyclic number.

It is not a de Polignac number, because 1150011101165 - 2²⁰ = 1150010052589 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 1150011101165.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 115001110112 + ... + 115001110121.

It is an arithmetic number, because the mean of its divisors is an integer number (345003330351).

Almost surely, 2^{1150011101165} is an apocalyptic number.

It is an amenable number.

1150011101165 is a deficient number, since it is larger than the sum of its proper divisors (230002220239).

1150011101165 is an equidigital number, since it uses as much as digits as its factorization.

1150011101165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230002220238.

The product of its (nonzero) digits is 150, while the sum is 23.

Adding to 1150011101165 its reverse (5611011100511), we get a palindrome (6761022201676).

The spelling of 1150011101165 in words is "one trillion, one hundred fifty billion, eleven million, one hundred one thousand, one hundred sixty-five".