111331320001320 has 256 divisors, whose sum is σ = 339725430720000. Its totient is φ = 29183190941696.

The previous prime is 111331320001309. The next prime is 111331320001351. The reversal of 111331320001320 is 23100023133111.

It is a happy 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, 1609986106 + ... + 1610055254.

It is an arithmetic number, because the mean of its divisors is an integer number (1327052463750).

Almost surely, 2^{111331320001320} is an apocalyptic number.

111331320001320 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 111331320001320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169862715360000).

111331320001320 is an abundant number, since it is smaller than the sum of its proper divisors (228394110718680).

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

111331320001320 is a wasteful number, since it uses less digits than its factorization.

111331320001320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70132 (or 70128 counting only the distinct ones).

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

Adding to 111331320001320 its reverse (23100023133111), we get a palindrome (134431343134431).

The spelling of 111331320001320 in words is "one hundred eleven trillion, three hundred thirty-one billion, three hundred twenty million, one thousand, three hundred twenty".