1123345667889 has 8 divisors (see below), whose sum is σ = 1664215804320. Its totient is φ = 748897111908.

The previous prime is 1123345667863. The next prime is 1123345667891. The reversal of 1123345667889 is 9887665433211.

1123345667889 is a `hidden beast` number, since 1 + 1 + 2 + 33 + 456 + 6 + 78 + 89 = 666.

It is not a de Polignac number, because 1123345667889 - 2¹⁹ = 1123345143601 is a prime.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1123345667809) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 20802697527 + ... + 20802697580.

It is an arithmetic number, because the mean of its divisors is an integer number (208026975540).

Almost surely, 2^{1123345667889} is an apocalyptic number.

It is an amenable number.

1123345667889 is a deficient number, since it is larger than the sum of its proper divisors (540870136431).

1123345667889 is an equidigital number, since it uses as much as digits as its factorization.

1123345667889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41605395116 (or 41605395110 counting only the distinct ones).

The product of its digits is 52254720, while the sum is 63.

The spelling of 1123345667889 in words is "one trillion, one hundred twenty-three billion, three hundred forty-five million, six hundred sixty-seven thousand, eight hundred eighty-nine".