111010011211091 has 16 divisors (see below), whose sum is σ = 113921102840160. Its totient is φ = 108108667457280.

The previous prime is 111010011211079. The next prime is 111010011211147. The reversal of 111010011211091 is 190112110010111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 111010011211091 - 2²⁶ = 111009944102227 is a prime.

It is a super-3 number, since 3×111010011211091³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111010011211591) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159977201 + ... + 160669613.

It is an arithmetic number, because the mean of its divisors is an integer number (7120068927510).

Almost surely, 2^{111010011211091} is an apocalyptic number.

111010011211091 is a deficient number, since it is larger than the sum of its proper divisors (2911091629069).

111010011211091 is an equidigital number, since it uses as much as digits as its factorization.

111010011211091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699446.

The product of its (nonzero) digits is 18, while the sum is 20.

The spelling of 111010011211091 in words is "one hundred eleven trillion, ten billion, eleven million, two hundred eleven thousand, ninety-one".