11111113200 has 120 divisors (see below), whose sum is σ = 38828336256. Its totient is φ = 2693600000.

The previous prime is 11111113199. The next prime is 11111113207. The reversal of 11111113200 is 231111111.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111113207) 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, 407676 + ... + 434075.

Almost surely, 2^11111113200 is an apocalyptic number.

11111113200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11111113200 is an abundant number, since it is smaller than the sum of its proper divisors (27717223056).

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

11111113200 is a wasteful number, since it uses less digits than its factorization.

11111113200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841783 (or 841772 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 12.

Adding to 11111113200 its reverse (231111111), we get a palindrome (11342224311).

The spelling of 11111113200 in words is "eleven billion, one hundred eleven million, one hundred thirteen thousand, two hundred".