11112144400 has 120 divisors (see below), whose sum is σ = 30752000000. Its totient is φ = 3779758080.

The previous prime is 11112144359. The next prime is 11112144413. The reversal of 11112144400 is 444121111.

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, 339976 + ... + 371224.

Almost surely, 2^11112144400 is an apocalyptic number.

11112144400 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 11112144400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15376000000).

11112144400 is an abundant number, since it is smaller than the sum of its proper divisors (19639855600).

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

11112144400 is a wasteful number, since it uses less digits than its factorization.

11112144400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31401 (or 31390 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 11112144400 its reverse (444121111), we get a palindrome (11556265511).

The spelling of 11112144400 in words is "eleven billion, one hundred twelve million, one hundred forty-four thousand, four hundred".