11331032320 has 72 divisors (see below), whose sum is σ = 27258567336. Its totient is φ = 4512841728.

The previous prime is 11331032309. The next prime is 11331032341. The reversal of 11331032320 is 2323013311.

It can be written as a sum of positive squares in 4 ways, for example, as 290907136 + 11040125184 = 17056^2 + 105072^2 .

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 279244 + ... + 317236.

It is an arithmetic number, because the mean of its divisors is an integer number (378591213).

Almost surely, 2^11331032320 is an apocalyptic number.

11331032320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11331032320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13629283668).

11331032320 is an abundant number, since it is smaller than the sum of its proper divisors (15927535016).

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

11331032320 is an equidigital number, since it uses as much as digits as its factorization.

11331032320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38247 (or 38233 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 11331032320 its reverse (2323013311), we get a palindrome (13654045631).

The spelling of 11331032320 in words is "eleven billion, three hundred thirty-one million, thirty-two thousand, three hundred twenty".