11130331031220 has 192 divisors, whose sum is σ = 34235701678080. Its totient is φ = 2689287524352.

The previous prime is 11130331031189. The next prime is 11130331031233. The reversal of 11130331031220 is 2213013303111.

It is a happy number.

It is a super-2 number, since 2×11130331031220² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 264879652 + ... + 264921668.

It is an arithmetic number, because the mean of its divisors is an integer number (178310946240).

Almost surely, 2^{11130331031220} is an apocalyptic number.

11130331031220 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 11130331031220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17117850839040).

11130331031220 is an abundant number, since it is smaller than the sum of its proper divisors (23105370646860).

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

11130331031220 is a wasteful number, since it uses less digits than its factorization.

11130331031220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52174 (or 52172 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 11130331031220 its reverse (2213013303111), we get a palindrome (13343344334331).

The spelling of 11130331031220 in words is "eleven trillion, one hundred thirty billion, three hundred thirty-one million, thirty-one thousand, two hundred twenty".