1085446801181 has 2 divisors, whose sum is σ = 1085446801182. Its totient is φ = 1085446801180.

The previous prime is 1085446801129. The next prime is 1085446801207. The reversal of 1085446801181 is 1811086445801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1049712948025 + 35733853156 = 1024555^2 + 189034^2 .

It is an emirp because it is prime and its reverse (1811086445801) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1085446801181 - 2¹⁰ = 1085446800157 is a prime.

It is a super-2 number, since 2×1085446801181² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1085446801111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 542723400590 + 542723400591.

It is an arithmetic number, because the mean of its divisors is an integer number (542723400591).

Almost surely, 2^{1085446801181} is an apocalyptic number.

It is an amenable number.

1085446801181 is a deficient number, since it is larger than the sum of its proper divisors (1).

1085446801181 is an equidigital number, since it uses as much as digits as its factorization.

1085446801181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 245760, while the sum is 47.

The spelling of 1085446801181 in words is "one trillion, eighty-five billion, four hundred forty-six million, eight hundred one thousand, one hundred eighty-one".