1111123345689 has 20 divisors (see below), whose sum is σ = 1896944266624. Its totient is φ = 634927625784.

The previous prime is 1111123345679. The next prime is 1111123345699. The reversal of 1111123345689 is 9865433211111.

1111123345689 is a `hidden beast` number, since 1 + 1 + 1 + 112 + 3 + 3 + 456 + 89 = 666.

It is an interprime number because it is at equal distance from previous prime (1111123345679) and next prime (1111123345699).

It is not a de Polignac number, because 1111123345689 - 2⁹ = 1111123345177 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1111123345649) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 979826017 + ... + 979827150.

Almost surely, 2^{1111123345689} is an apocalyptic number.

It is an amenable number.

1111123345689 is a deficient number, since it is larger than the sum of its proper divisors (785820920935).

1111123345689 is an equidigital number, since it uses as much as digits as its factorization.

1111123345689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1959653186 (or 1959653177 counting only the distinct ones).

The product of its digits is 155520, while the sum is 45.

The spelling of 1111123345689 in words is "one trillion, one hundred eleven billion, one hundred twenty-three million, three hundred forty-five thousand, six hundred eighty-nine".