11081331000001 has 8 divisors (see below), whose sum is σ = 11463500917800. Its totient is φ = 10699164752640.

The previous prime is 11081330999941. The next prime is 11081331000037. The reversal of 11081331000001 is 10000013318011.

It can be written as a sum of positive squares in 4 ways, for example, as 1431734295601 + 9649596704400 = 1196551^2 + 3106380^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11081331000001 - 2¹⁷ = 11081330868929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11081331000041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6146505 + ... + 7742233.

It is an arithmetic number, because the mean of its divisors is an integer number (1432937614725).

Almost surely, 2^{11081331000001} is an apocalyptic number.

It is an amenable number.

11081331000001 is a deficient number, since it is larger than the sum of its proper divisors (382169917799).

11081331000001 is a wasteful number, since it uses less digits than its factorization.

11081331000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1835219.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 11081331000001 its reverse (10000013318011), we get a palindrome (21081344318012).

The spelling of 11081331000001 in words is "eleven trillion, eighty-one billion, three hundred thirty-one million, one", and thus it is an aban number.