113211331200 has 288 divisors, whose sum is σ = 440689204800. Its totient is φ = 27445094400.

The previous prime is 113211331199. The next prime is 113211331231. The reversal of 113211331200 is 2133112311.

113211331200 is a `hidden beast` number, since 1 + 132 + 1 + 1 + 331 + 200 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (18).

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 35 ways as a sum of consecutive naturals, for example, 138121 + ... + 495479.

It is an arithmetic number, because the mean of its divisors is an integer number (1530170850).

Almost surely, 2^113211331200 is an apocalyptic number.

113211331200 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 113211331200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220344602400).

113211331200 is an abundant number, since it is smaller than the sum of its proper divisors (327477873600).

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

113211331200 is a wasteful number, since it uses less digits than its factorization.

113211331200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357400 (or 357380 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 113211331200 its reverse (2133112311), we get a palindrome (115344443511).

The spelling of 113211331200 in words is "one hundred thirteen billion, two hundred eleven million, three hundred thirty-one thousand, two hundred".