1123345566791 has 8 divisors (see below), whose sum is σ = 1284177106944. Its totient is φ = 962602427160.

The previous prime is 1123345566751. The next prime is 1123345566809. The reversal of 1123345566791 is 1976655433211.

It is a happy number.

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 1123345566791 - 2²² = 1123341372487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123345566751) 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 7 ways as a sum of consecutive naturals, for example, 22072895 + ... + 22123728.

It is an arithmetic number, because the mean of its divisors is an integer number (160522138368).

Almost surely, 2^{1123345566791} is an apocalyptic number.

1123345566791 is a deficient number, since it is larger than the sum of its proper divisors (160831540153).

1123345566791 is an equidigital number, since it uses as much as digits as its factorization.

1123345566791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44200261.

The product of its digits is 4082400, while the sum is 53.

The spelling of 1123345566791 in words is "one trillion, one hundred twenty-three billion, three hundred forty-five million, five hundred sixty-six thousand, seven hundred ninety-one".