111131331121200 has 120 divisors (see below), whose sum is σ = 383374597208848. Its totient is φ = 27355404579840.

The previous prime is 111131331121199. The next prime is 111131331121207. The reversal of 111131331121200 is 2121133131111.

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

It is not an unprimeable number, because it can be changed into a prime (111131331121207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3561886039 + ... + 3561917238.

Almost surely, 2^{111131331121200} is an apocalyptic number.

111131331121200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111131331121200 is an abundant number, since it is smaller than the sum of its proper divisors (272243266087648).

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

111131331121200 is a wasteful number, since it uses less digits than its factorization.

111131331121200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7123803311 (or 7123803300 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 21.

Adding to 111131331121200 its reverse (2121133131111), we get a palindrome (113252464252311).

The spelling of 111131331121200 in words is "one hundred eleven trillion, one hundred thirty-one billion, three hundred thirty-one million, one hundred twenty-one thousand, two hundred".