13531440330 has 96 divisors (see below), whose sum is σ = 37936866240. Its totient is φ = 3335074560.

The previous prime is 13531440319. The next prime is 13531440331. The reversal of 13531440330 is 3304413531.

13531440330 is a `hidden beast` number, since 13 + 5 + 314 + 4 + 0 + 330 = 666.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13531440294 and 13531440303.

It is not an unprimeable number, because it can be changed into a prime (13531440331) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26392 + ... + 166611.

It is an arithmetic number, because the mean of its divisors is an integer number (395175690).

Almost surely, 2^13531440330 is an apocalyptic number.

13531440330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13531440330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18968433120).

13531440330 is an abundant number, since it is smaller than the sum of its proper divisors (24405425910).

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

13531440330 is a wasteful number, since it uses less digits than its factorization.

13531440330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193076 (or 193073 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

Adding to 13531440330 its reverse (3304413531), we get a palindrome (16835853861).

The spelling of 13531440330 in words is "thirteen billion, five hundred thirty-one million, four hundred forty thousand, three hundred thirty".