11303207521320 has 512 divisors, whose sum is σ = 40621512960000. Its totient is φ = 2479710105600.

The previous prime is 11303207521271. The next prime is 11303207521321. The reversal of 11303207521320 is 2312570230311.

11303207521320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (11303207521321) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1363306375 + ... + 1363314665.

It is an arithmetic number, because the mean of its divisors is an integer number (79338892500).

Almost surely, 2^{11303207521320} is an apocalyptic number.

11303207521320 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 11303207521320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20310756480000).

11303207521320 is an abundant number, since it is smaller than the sum of its proper divisors (29318305438680).

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

11303207521320 is a wasteful number, since it uses less digits than its factorization.

11303207521320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9881 (or 9877 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 30.

Adding to 11303207521320 its reverse (2312570230311), we get a palindrome (13615777751631).

The spelling of 11303207521320 in words is "eleven trillion, three hundred three billion, two hundred seven million, five hundred twenty-one thousand, three hundred twenty".