1123346678 has 4 divisors (see below), whose sum is σ = 1685020020. Its totient is φ = 561673338.

The previous prime is 1123346641. The next prime is 1123346683. The reversal of 1123346678 is 8766433211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8766433211 = 79 ⋅110967509.

It is a Curzon number.

It is a plaindrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280836668 + ... + 280836671.

It is an arithmetic number, because the mean of its divisors is an integer number (421255005).

Almost surely, 2^1123346678 is an apocalyptic number.

1123346678 is a deficient number, since it is larger than the sum of its proper divisors (561673342).

1123346678 is an equidigital number, since it uses as much as digits as its factorization.

1123346678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561673341.

The product of its digits is 145152, while the sum is 41.

The square root of 1123346678 is about 33516.3643314725. The cubic root of 1123346678 is about 1039.5321730932.

Adding to 1123346678 its reverse (8766433211), we get a palindrome (9889779889).

The spelling of 1123346678 in words is "one billion, one hundred twenty-three million, three hundred forty-six thousand, six hundred seventy-eight".