11331440312 has 32 divisors (see below), whose sum is σ = 21570040800. Its totient is φ = 5580054144.

The previous prime is 11331440299. The next prime is 11331440339. The reversal of 11331440312 is 21304413311.

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, 106718 + ... + 184530.

It is an arithmetic number, because the mean of its divisors is an integer number (674063775).

Almost surely, 2^11331440312 is an apocalyptic number.

It is an amenable number.

11331440312 is a deficient number, since it is larger than the sum of its proper divisors (10238600488).

11331440312 is a wasteful number, since it uses less digits than its factorization.

11331440312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78095 (or 78091 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 11331440312 its reverse (21304413311), we get a palindrome (32635853623).

The spelling of 11331440312 in words is "eleven billion, three hundred thirty-one million, four hundred forty thousand, three hundred twelve".