1123411213817 has 2 divisors, whose sum is σ = 1123411213818. Its totient is φ = 1123411213816.

The previous prime is 1123411213811. The next prime is 1123411214011. The reversal of 1123411213817 is 7183121143211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 983698977856 + 139712235961 = 991816^2 + 373781^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123411213817 - 2¹⁸ = 1123410951673 is a prime.

It is not a weakly prime, because it can be changed into another prime (1123411213811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561705606908 + 561705606909.

It is an arithmetic number, because the mean of its divisors is an integer number (561705606909).

Almost surely, 2^{1123411213817} is an apocalyptic number.

It is an amenable number.

1123411213817 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123411213817 is an equidigital number, since it uses as much as digits as its factorization.

1123411213817 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 35.

The spelling of 1123411213817 in words is "one trillion, one hundred twenty-three billion, four hundred eleven million, two hundred thirteen thousand, eight hundred seventeen".