111200232120 has 32 divisors (see below), whose sum is σ = 333600696720. Its totient is φ = 29653395200.

The previous prime is 111200232089. The next prime is 111200232131. The reversal of 111200232120 is 21232002111.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 111200232120.

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 7 ways as a sum of consecutive naturals, for example, 463334181 + ... + 463334420.

Almost surely, 2^111200232120 is an apocalyptic number.

111200232120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111200232120 is an abundant number, since it is smaller than the sum of its proper divisors (222400464600).

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

111200232120 is a wasteful number, since it uses less digits than its factorization.

111200232120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926668615 (or 926668611 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 111200232120 its reverse (21232002111), we get a palindrome (132432234231).

The spelling of 111200232120 in words is "one hundred eleven billion, two hundred million, two hundred thirty-two thousand, one hundred twenty".