11123345667789 has 24 divisors (see below), whose sum is σ = 16134797203200. Its totient is φ = 7384357024800.

The previous prime is 11123345667701. The next prime is 11123345667853. The reversal of 11123345667789 is 98776654332111.

11123345667789 is a `hidden beast` number, since 1 + 1 + 1 + 2 + 33 + 456 + 6 + 77 + 89 = 666.

It is not a de Polignac number, because 11123345667789 - 2²⁴ = 11123328890573 is a prime.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11123345667989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 190629 + ... + 4720490.

It is an arithmetic number, because the mean of its divisors is an integer number (672283216800).

Almost surely, 2^{11123345667789} is an apocalyptic number.

It is an amenable number.

11123345667789 is a deficient number, since it is larger than the sum of its proper divisors (5011451535411).

11123345667789 is a wasteful number, since it uses less digits than its factorization.

11123345667789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4912185 (or 4912182 counting only the distinct ones).

The product of its digits is 45722880, while the sum is 63.

The spelling of 11123345667789 in words is "eleven trillion, one hundred twenty-three billion, three hundred forty-five million, six hundred sixty-seven thousand, seven hundred eighty-nine".