111123201120000 has 360 divisors, whose sum is σ = 379557321790416. Its totient is φ = 28831961088000.

The previous prime is 111123201119941. The next prime is 111123201120007. The reversal of 111123201120000 is 21102321111.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111123201120007) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 14631532 + ... + 20888468.

Almost surely, 2^{111123201120000} is an apocalyptic number.

111123201120000 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 111123201120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189778660895208).

111123201120000 is an abundant number, since it is smaller than the sum of its proper divisors (268434120670416).

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

111123201120000 is an frugal number, since it uses more digits than its factorization.

111123201120000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6257013 (or 6256984 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 111123201120000 its reverse (21102321111), we get a palindrome (111144303441111).

The spelling of 111123201120000 in words is "one hundred eleven trillion, one hundred twenty-three billion, two hundred one million, one hundred twenty thousand".