1105905053917 has 2 divisors, whose sum is σ = 1105905053918. Its totient is φ = 1105905053916.

The previous prime is 1105905053909. The next prime is 1105905053923. The reversal of 1105905053917 is 7193505095011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 704372454361 + 401532599556 = 839269^2 + 633666^2 .

It is a cyclic number.

It is not a de Polignac number, because 1105905053917 - 2³ = 1105905053909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1105905053977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 552952526958 + 552952526959.

It is an arithmetic number, because the mean of its divisors is an integer number (552952526959).

Almost surely, 2^{1105905053917} is an apocalyptic number.

It is an amenable number.

1105905053917 is a deficient number, since it is larger than the sum of its proper divisors (1).

1105905053917 is an equidigital number, since it uses as much as digits as its factorization.

1105905053917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 212625, while the sum is 46.

The spelling of 1105905053917 in words is "one trillion, one hundred five billion, nine hundred five million, fifty-three thousand, nine hundred seventeen".