111230023021320 has 256 divisors, whose sum is σ = 388074447360000. Its totient is φ = 24976937696256.

The previous prime is 111230023021303. The next prime is 111230023021321. The reversal of 111230023021320 is 23120320032111.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (111230023021321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 76043989 + ... + 77492891.

It is an arithmetic number, because the mean of its divisors is an integer number (1515915810000).

Almost surely, 2^{111230023021320} is an apocalyptic number.

111230023021320 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 111230023021320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194037223680000).

111230023021320 is an abundant number, since it is smaller than the sum of its proper divisors (276844424338680).

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

111230023021320 is a wasteful number, since it uses less digits than its factorization.

111230023021320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1450532 (or 1450528 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 111230023021320 its reverse (23120320032111), we get a palindrome (134350343053431).

The spelling of 111230023021320 in words is "one hundred eleven trillion, two hundred thirty billion, twenty-three million, twenty-one thousand, three hundred twenty".