111213023200 has 36 divisors (see below), whose sum is σ = 271498794840. Its totient is φ = 44485208960.

The previous prime is 111213023191. The next prime is 111213023213. The reversal of 111213023200 is 2320312111.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 69507340 + ... + 69508939.

It is an arithmetic number, because the mean of its divisors is an integer number (7541633190).

Almost surely, 2^111213023200 is an apocalyptic number.

111213023200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111213023200 is an abundant number, since it is smaller than the sum of its proper divisors (160285771640).

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

111213023200 is a wasteful number, since it uses less digits than its factorization.

111213023200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139016299 (or 139016286 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 111213023200 its reverse (2320312111), we get a palindrome (113533335311).

The spelling of 111213023200 in words is "one hundred eleven billion, two hundred thirteen million, twenty-three thousand, two hundred".