111011011099965 has 48 divisors (see below), whose sum is σ = 202673238019200. Its totient is φ = 56054651377536.

The previous prime is 111011011099873. The next prime is 111011011099969. The reversal of 111011011099965 is 569990110110111.

It is not a de Polignac number, because 111011011099965 - 2⁹ = 111011011099453 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 111011011099965.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111011011099969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 39284985 + ... + 42015854.

It is an arithmetic number, because the mean of its divisors is an integer number (4222359125400).

Almost surely, 2^{111011011099965} is an apocalyptic number.

111011011099965 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

111011011099965 is a deficient number, since it is larger than the sum of its proper divisors (91662226919235).

111011011099965 is a wasteful number, since it uses less digits than its factorization.

111011011099965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81302466 (or 81302463 counting only the distinct ones).

The product of its (nonzero) digits is 21870, while the sum is 45.

The spelling of 111011011099965 in words is "one hundred eleven trillion, eleven billion, eleven million, ninety-nine thousand, nine hundred sixty-five".