111201423032320 has 128 divisors (see below), whose sum is σ = 268980805440000. Its totient is φ = 44130320252928.

The previous prime is 111201423032309. The next prime is 111201423032389. The reversal of 111201423032320 is 23230324102111.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18135556 + ... + 23479804.

It is an arithmetic number, because the mean of its divisors is an integer number (2101412542500).

Almost surely, 2^{111201423032320} is an apocalyptic number.

111201423032320 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 111201423032320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134490402720000).

111201423032320 is an abundant number, since it is smaller than the sum of its proper divisors (157779382407680).

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

111201423032320 is an frugal number, since it uses more digits than its factorization.

111201423032320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5344411 (or 5344383 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 111201423032320 its reverse (23230324102111), we get a palindrome (134431747134431).

The spelling of 111201423032320 in words is "one hundred eleven trillion, two hundred one billion, four hundred twenty-three million, thirty-two thousand, three hundred twenty".