12111031200 has 288 divisors, whose sum is σ = 42167926080. Its totient is φ = 3008512000.

The previous prime is 12111031187. The next prime is 12111031213. The reversal of 12111031200 is 213011121.

It is an interprime number because it is at equal distance from previous prime (12111031187) and next prime (12111031213).

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

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 4119331 + ... + 4122269.

It is an arithmetic number, because the mean of its divisors is an integer number (146416410).

Almost surely, 2^12111031200 is an apocalyptic number.

12111031200 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 12111031200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21083963040).

12111031200 is an abundant number, since it is smaller than the sum of its proper divisors (30056894880).

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

12111031200 is a wasteful number, since it uses less digits than its factorization.

12111031200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3080 (or 3067 counting only the distinct ones).

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

Adding to 12111031200 its reverse (213011121), we get a palindrome (12324042321).

The spelling of 12111031200 in words is "twelve billion, one hundred eleven million, thirty-one thousand, two hundred".