11521325211330 has 96 divisors (see below), whose sum is σ = 30415596023232. Its totient is φ = 2791013061760.

The previous prime is 11521325211317. The next prime is 11521325211353. The reversal of 11521325211330 is 3311252312511.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3828157 + ... + 6139823.

It is an arithmetic number, because the mean of its divisors is an integer number (316829125242).

Almost surely, 2^{11521325211330} is an apocalyptic number.

11521325211330 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 11521325211330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15207798011616).

11521325211330 is an abundant number, since it is smaller than the sum of its proper divisors (18894270811902).

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

11521325211330 is a wasteful number, since it uses less digits than its factorization.

11521325211330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2313072 (or 2313061 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

Adding to 11521325211330 its reverse (3311252312511), we get a palindrome (14832577523841).

The spelling of 11521325211330 in words is "eleven trillion, five hundred twenty-one billion, three hundred twenty-five million, two hundred eleven thousand, three hundred thirty".