1111322311320 has 256 divisors, whose sum is σ = 3718480711680. Its totient is φ = 263963750400.

The previous prime is 1111322311289. The next prime is 1111322311357. The reversal of 1111322311320 is 231132231111.

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, 5098980 + ... + 5312460.

It is an arithmetic number, because the mean of its divisors is an integer number (14525315280).

Almost surely, 2^{1111322311320} is an apocalyptic number.

1111322311320 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 1111322311320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1859240355840).

1111322311320 is an abundant number, since it is smaller than the sum of its proper divisors (2607158400360).

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

1111322311320 is a wasteful number, since it uses less digits than its factorization.

1111322311320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213626 (or 213622 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 1111322311320 its reverse (231132231111), we get a palindrome (1342454542431).

The spelling of 1111322311320 in words is "one trillion, one hundred eleven billion, three hundred twenty-two million, three hundred eleven thousand, three hundred twenty".