1111403553200 has 120 divisors (see below), whose sum is σ = 2828163079728. Its totient is φ = 418270371840.

The previous prime is 1111403553187. The next prime is 1111403553203. The reversal of 1111403553200 is 23553041111.

It is a self number, because there is not a number n which added to its sum of digits gives 1111403553200.

It is not an unprimeable number, because it can be changed into a prime (1111403553203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21482564 + ... + 21534236.

Almost surely, 2^{1111403553200} is an apocalyptic number.

1111403553200 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 1111403553200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1414081539864).

1111403553200 is an abundant number, since it is smaller than the sum of its proper divisors (1716759526528).

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

1111403553200 is a wasteful number, since it uses less digits than its factorization.

1111403553200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54871 (or 54860 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

Adding to 1111403553200 its reverse (23553041111), we get a palindrome (1134956594311).

The spelling of 1111403553200 in words is "one trillion, one hundred eleven billion, four hundred three million, five hundred fifty-three thousand, two hundred".