11333031440 has 20 divisors (see below), whose sum is σ = 26349298284. Its totient is φ = 4533212544.

The previous prime is 11333031433. The next prime is 11333031449. The reversal of 11333031440 is 4413033311.

It can be written as a sum of positive squares in 2 ways, for example, as 8820215056 + 2512816384 = 93916^2 + 50128^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (11333031449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70831367 + ... + 70831526.

Almost surely, 2^11333031440 is an apocalyptic number.

11333031440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11333031440 is an abundant number, since it is smaller than the sum of its proper divisors (15016266844).

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

11333031440 is a wasteful number, since it uses less digits than its factorization.

11333031440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141662906 (or 141662900 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 11333031440 its reverse (4413033311), we get a palindrome (15746064751).

The spelling of 11333031440 in words is "eleven billion, three hundred thirty-three million, thirty-one thousand, four hundred forty".