111200020800 has 672 divisors, whose sum is σ = 411453665280. Its totient is φ = 26062233600.

The previous prime is 111200020741. The next prime is 111200020843. The reversal of 111200020800 is 8020002111.

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

It is a self number, because there is not a number n which added to its sum of digits gives 111200020800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 221073349 + ... + 221073851.

It is an arithmetic number, because the mean of its divisors is an integer number (612282240).

Almost surely, 2^111200020800 is an apocalyptic number.

111200020800 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 111200020800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205726832640).

111200020800 is an abundant number, since it is smaller than the sum of its proper divisors (300253644480).

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

111200020800 is a wasteful number, since it uses less digits than its factorization.

111200020800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671 (or 656 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 111200020800 its reverse (8020002111), we get a palindrome (119220022911).

The spelling of 111200020800 in words is "one hundred eleven billion, two hundred million, twenty thousand, eight hundred".