1131321030320 has 240 divisors, whose sum is σ = 2885795556192. Its totient is φ = 412235366400.

The previous prime is 1131321030311. The next prime is 1131321030341. The reversal of 1131321030320 is 230301231311.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1131321030292 and 1131321030301.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 482027387 + ... + 482029733.

Almost surely, 2^{1131321030320} is an apocalyptic number.

1131321030320 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 1131321030320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1442897778096).

1131321030320 is an abundant number, since it is smaller than the sum of its proper divisors (1754474525872).

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

1131321030320 is a wasteful number, since it uses less digits than its factorization.

1131321030320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2840 (or 2821 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 1131321030320 its reverse (230301231311), we get a palindrome (1361622261631).

The spelling of 1131321030320 in words is "one trillion, one hundred thirty-one billion, three hundred twenty-one million, thirty thousand, three hundred twenty".