11331311888 has 20 divisors (see below), whose sum is σ = 23643218508. Its totient is φ = 5229836160.

The previous prime is 11331311881. The next prime is 11331311899. The reversal of 11331311888 is 88811313311.

It can be written as a sum of positive squares in 2 ways, for example, as 3902251024 + 7429060864 = 62468^2 + 86192^2 .

It is a super-3 number, since 3×11331311888³ (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (11331311881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27238523 + ... + 27238938.

Almost surely, 2^11331311888 is an apocalyptic number.

It is an amenable number.

11331311888 is an abundant number, since it is smaller than the sum of its proper divisors (12311906620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11331311888 is a wasteful number, since it uses less digits than its factorization.

11331311888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54477482 (or 54477476 counting only the distinct ones).

The product of its digits is 13824, while the sum is 38.

The spelling of 11331311888 in words is "eleven billion, three hundred thirty-one million, three hundred eleven thousand, eight hundred eighty-eight".