1123132085723 has 2 divisors, whose sum is σ = 1123132085724. Its totient is φ = 1123132085722.

The previous prime is 1123132085707. The next prime is 1123132085729. The reversal of 1123132085723 is 3275802313211.

It is a strong prime.

It is an emirp because it is prime and its reverse (3275802313211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1123132085723 - 2⁴ = 1123132085707 is a prime.

It is a super-2 number, since 2×1123132085723² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1123132085729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561566042861 + 561566042862.

It is an arithmetic number, because the mean of its divisors is an integer number (561566042862).

Almost surely, 2^{1123132085723} is an apocalyptic number.

1123132085723 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123132085723 is an equidigital number, since it uses as much as digits as its factorization.

1123132085723 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 38.

Adding to 1123132085723 its reverse (3275802313211), we get a palindrome (4398934398934).

The spelling of 1123132085723 in words is "one trillion, one hundred twenty-three billion, one hundred thirty-two million, eighty-five thousand, seven hundred twenty-three".