111449520000000 has 4224 divisors, whose sum is σ = 523231051150080. Its totient is φ = 23514624000000.

The previous prime is 111449519999933. The next prime is 111449520000011. The reversal of 111449520000000 is 25944111.

111449520000000 is a `hidden beast` number, since 1 + 11 + 449 + 5 + 200 + 0 + 0 + 0 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 8573039999994 + ... + 8573040000006.

Almost surely, 2^{111449520000000} is an apocalyptic number.

111449520000000 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 111449520000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (261615525575040).

111449520000000 is an abundant number, since it is smaller than the sum of its proper divisors (411781531150080).

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

111449520000000 is an frugal number, since it uses more digits than its factorization.

111449520000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103 (or 30 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

Adding to 111449520000000 its reverse (25944111), we get a palindrome (111449545944111).

The spelling of 111449520000000 in words is "one hundred eleven trillion, four hundred forty-nine billion, five hundred twenty million", and thus it is an aban number.