11331031011 has 8 divisors (see below), whose sum is σ = 15111914064. Its totient is φ = 7552084320.

The previous prime is 11331031009. The next prime is 11331031021. The reversal of 11331031011 is 11013013311.

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

It is not a de Polignac number, because 11331031011 - 2¹ = 11331031009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11331031021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 470380 + ... + 493881.

It is an arithmetic number, because the mean of its divisors is an integer number (1888989258).

Almost surely, 2^11331031011 is an apocalyptic number.

11331031011 is a deficient number, since it is larger than the sum of its proper divisors (3780883053).

11331031011 is an equidigital number, since it uses as much as digits as its factorization.

11331031011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968181.

The product of its (nonzero) digits is 27, while the sum is 15.

Adding to 11331031011 its reverse (11013013311), we get a palindrome (22344044322).

The spelling of 11331031011 in words is "eleven billion, three hundred thirty-one million, thirty-one thousand, eleven".