1123541275817 has 2 divisors, whose sum is σ = 1123541275818. Its totient is φ = 1123541275816.

The previous prime is 1123541275771. The next prime is 1123541275823. The reversal of 1123541275817 is 7185721453211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1123029792361 + 511483456 = 1059731^2 + 22616^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123541275817 - 2¹⁴ = 1123541259433 is a prime.

It is not a weakly prime, because it can be changed into another prime (1123541265817) 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 as a sum of consecutive naturals, namely, 561770637908 + 561770637909.

It is an arithmetic number, because the mean of its divisors is an integer number (561770637909).

Almost surely, 2^{1123541275817} is an apocalyptic number.

It is an amenable number.

1123541275817 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123541275817 is an equidigital number, since it uses as much as digits as its factorization.

1123541275817 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 470400, while the sum is 47.

The spelling of 1123541275817 in words is "one trillion, one hundred twenty-three billion, five hundred forty-one million, two hundred seventy-five thousand, eight hundred seventeen".