1123344556679 has 4 divisors (see below), whose sum is σ = 1128989504400. Its totient is φ = 1117699608960.

The previous prime is 1123344556667. The next prime is 1123344556681. The reversal of 1123344556679 is 9766554433211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1123344556679 - 2²⁴ = 1123327779463 is a prime.

It is a Duffinian number.

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 (1123344556079) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 2822473562 + ... + 2822473959.

It is an arithmetic number, because the mean of its divisors is an integer number (282247376100).

Almost surely, 2^{1123344556679} is an apocalyptic number.

1123344556679 is a deficient number, since it is larger than the sum of its proper divisors (5644947721).

1123344556679 is an equidigital number, since it uses as much as digits as its factorization.

1123344556679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5644947720.

The product of its digits is 16329600, while the sum is 56.

The spelling of 1123344556679 in words is "one trillion, one hundred twenty-three billion, three hundred forty-four million, five hundred fifty-six thousand, six hundred seventy-nine".