2112343010440 has 128 divisors (see below), whose sum is σ = 5158491700320. Its totient is φ = 773834342400.

The previous prime is 2112343010369. The next prime is 2112343010467. The reversal of 2112343010440 is 440103432112.

It can be written as a sum of positive squares in 16 ways, for example, as 13315775236 + 2099027235204 = 115394^2 + 1448802^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 153942780 + ... + 153956500.

Almost surely, 2^{2112343010440} is an apocalyptic number.

2112343010440 is a gapful number since it is divisible by the number (20) 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 2112343010440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2579245850160).

2112343010440 is an abundant number, since it is smaller than the sum of its proper divisors (3046148689880).

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

2112343010440 is a wasteful number, since it uses less digits than its factorization.

2112343010440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16043 (or 16039 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 2112343010440 its reverse (440103432112), we get a palindrome (2552446442552).

The spelling of 2112343010440 in words is "two trillion, one hundred twelve billion, three hundred forty-three million, ten thousand, four hundred forty".