111550324400 has 60 divisors (see below), whose sum is σ = 268340944872. Its totient is φ = 44563307520.

The previous prime is 111550324393. The next prime is 111550324429. The reversal of 111550324400 is 4423055111.

It is a self number, because there is not a number n which added to its sum of digits gives 111550324400.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 137624 + ... + 491976.

Almost surely, 2^111550324400 is an apocalyptic number.

111550324400 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 111550324400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134170472436).

111550324400 is an abundant number, since it is smaller than the sum of its proper divisors (156790620472).

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

111550324400 is a wasteful number, since it uses less digits than its factorization.

111550324400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355158 (or 355147 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 111550324400 its reverse (4423055111), we get a palindrome (115973379511).

The spelling of 111550324400 in words is "one hundred eleven billion, five hundred fifty million, three hundred twenty-four thousand, four hundred".