111203544456 has 96 divisors (see below), whose sum is σ = 319425233400. Its totient is φ = 34829107200.

The previous prime is 111203544401. The next prime is 111203544479. The reversal of 111203544456 is 654445302111.

111203544456 is a `hidden beast` number, since 1 + 1 + 1 + 203 + 5 + 4 + 445 + 6 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 103252968900 + 7950575556 = 321330^2 + 89166^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 111203544456.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 660040 + ... + 811208.

Almost surely, 2^111203544456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111203544456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159712616700).

111203544456 is an abundant number, since it is smaller than the sum of its proper divisors (208221688944).

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

111203544456 is a wasteful number, since it uses less digits than its factorization.

111203544456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151799 (or 151792 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

Adding to 111203544456 its reverse (654445302111), we get a palindrome (765648846567).

The spelling of 111203544456 in words is "one hundred eleven billion, two hundred three million, five hundred forty-four thousand, four hundred fifty-six".