11331331085 has 8 divisors (see below), whose sum is σ = 13603191576. Its totient is φ = 9061335360.

The previous prime is 11331331073. The next prime is 11331331129. The reversal of 11331331085 is 58013313311.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2647514116 + 8683816969 = 51454^2 + 93187^2 .

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

It is not a de Polignac number, because 11331331085 - 2¹⁰ = 11331330061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 452786 + ... + 477155.

It is an arithmetic number, because the mean of its divisors is an integer number (1700398947).

Almost surely, 2^11331331085 is an apocalyptic number.

It is an amenable number.

11331331085 is a deficient number, since it is larger than the sum of its proper divisors (2271860491).

11331331085 is an equidigital number, since it uses as much as digits as its factorization.

11331331085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932383.

The product of its (nonzero) digits is 3240, while the sum is 29.

Adding to 11331331085 its reverse (58013313311), we get a palindrome (69344644396).

The spelling of 11331331085 in words is "eleven billion, three hundred thirty-one million, three hundred thirty-one thousand, eighty-five".