2112304342440 has 128 divisors (see below), whose sum is σ = 6779786601600. Its totient is φ = 524886635520.

The previous prime is 2112304342433. The next prime is 2112304342471. The reversal of 2112304342440 is 442434032112.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 2112304342398 and 2112304342407.

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 31 ways as a sum of consecutive naturals, for example, 7454767 + ... + 7732926.

It is an arithmetic number, because the mean of its divisors is an integer number (52967082825).

Almost surely, 2^{2112304342440} is an apocalyptic number.

2112304342440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2112304342440 is an abundant number, since it is smaller than the sum of its proper divisors (4667482259160).

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

2112304342440 is a wasteful number, since it uses less digits than its factorization.

2112304342440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15187787 (or 15187783 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 2112304342440 its reverse (442434032112), we get a palindrome (2554738374552).

The spelling of 2112304342440 in words is "two trillion, one hundred twelve billion, three hundred four million, three hundred forty-two thousand, four hundred forty".