11071185185281 has 16 divisors (see below), whose sum is σ = 12334812431760. Its totient is φ = 9866464231680.

The previous prime is 11071185185267. The next prime is 11071185185297. The reversal of 11071185185281 is 18258158117011.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 6266430784656 + 4804754400625 = 2503284^2 + 2191975^2 .

It is a cyclic number.

It is not a de Polignac number, because 11071185185281 - 2⁹ = 11071185184769 is a prime.

It is a super-2 number, since 2×11071185185281² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11071185185201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4382691 + ... + 6430423.

It is an arithmetic number, because the mean of its divisors is an integer number (770925776985).

Almost surely, 2^{11071185185281} is an apocalyptic number.

It is an amenable number.

11071185185281 is a deficient number, since it is larger than the sum of its proper divisors (1263627246479).

11071185185281 is a wasteful number, since it uses less digits than its factorization.

11071185185281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2062116.

The product of its (nonzero) digits is 179200, while the sum is 49.

The spelling of 11071185185281 in words is "eleven trillion, seventy-one billion, one hundred eighty-five million, one hundred eighty-five thousand, two hundred eighty-one".