1123043321443 has 8 divisors (see below), whose sum is σ = 1172140937856. Its totient is φ = 1074979339200.

The previous prime is 1123043321383. The next prime is 1123043321447. The reversal of 1123043321443 is 3441233403211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1123043321443 - 2³⁷ = 985604367971 is a prime.

It is a super-2 number, since 2×1123043321443² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1123043321447) 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, 258406323 + ... + 258410668.

It is an arithmetic number, because the mean of its divisors is an integer number (146517617232).

Almost surely, 2^{1123043321443} is an apocalyptic number.

1123043321443 is a deficient number, since it is larger than the sum of its proper divisors (49097616413).

1123043321443 is an equidigital number, since it uses as much as digits as its factorization.

1123043321443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516817085.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 1123043321443 its reverse (3441233403211), we get a palindrome (4564276724654).

The spelling of 1123043321443 in words is "one trillion, one hundred twenty-three billion, forty-three million, three hundred twenty-one thousand, four hundred forty-three".