2340443121121 has 12 divisors (see below), whose sum is σ = 2722852449540. Its totient is φ = 2005875876480.

The previous prime is 2340443121101. The next prime is 2340443121127. The reversal of 2340443121121 is 1211213440432.

It is a happy number.

2340443121121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 953183168721 + 1387259952400 = 976311^2 + 1177820^2 .

It is not a de Polignac number, because 2340443121121 - 2⁷ = 2340443120993 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2340443121121.

It is not an unprimeable number, because it can be changed into a prime (2340443121127) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2142100 + ... + 3044581.

It is an arithmetic number, because the mean of its divisors is an integer number (226904370795).

Almost surely, 2^{2340443121121} is an apocalyptic number.

It is an amenable number.

2340443121121 is a deficient number, since it is larger than the sum of its proper divisors (382409328419).

2340443121121 is an equidigital number, since it uses as much as digits as its factorization.

2340443121121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5195904 (or 5195897 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 2340443121121 its reverse (1211213440432), we get a palindrome (3551656561553).

The spelling of 2340443121121 in words is "two trillion, three hundred forty billion, four hundred forty-three million, one hundred twenty-one thousand, one hundred twenty-one".