2112110131230 has 144 divisors (see below), whose sum is σ = 6042975421392. Its totient is φ = 511443187200.

The previous prime is 2112110131213. The next prime is 2112110131303. The reversal of 2112110131230 is 321310112112.

2112110131230 is a `hidden beast` number, since 211 + 2 + 110 + 1 + 312 + 30 = 666.

It is a super-2 number, since 2×2112110131230² (a number of 25 digits) contains 22 as substring.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 9484017 + ... + 9704163.

It is an arithmetic number, because the mean of its divisors is an integer number (41965107093).

Almost surely, 2^{2112110131230} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2112110131230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3021487710696).

2112110131230 is an abundant number, since it is smaller than the sum of its proper divisors (3930865290162).

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

2112110131230 is a wasteful number, since it uses less digits than its factorization.

2112110131230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221063 (or 221049 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 2112110131230 its reverse (321310112112), we get a palindrome (2433420243342).

The spelling of 2112110131230 in words is "two trillion, one hundred twelve billion, one hundred ten million, one hundred thirty-one thousand, two hundred thirty".