2340121243 has 8 divisors (see below), whose sum is σ = 2385334656. Its totient is φ = 2294947200.

The previous prime is 2340121219. The next prime is 2340121253. The reversal of 2340121243 is 3421210432.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2340121243 - 2²⁹ = 1803250331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2340121253) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 128803 + ... + 145843.

It is an arithmetic number, because the mean of its divisors is an integer number (298166832).

Almost surely, 2^2340121243 is an apocalyptic number.

2340121243 is a deficient number, since it is larger than the sum of its proper divisors (45213413).

2340121243 is a wasteful number, since it uses less digits than its factorization.

2340121243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19685.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 2340121243 is about 48374.7996688358. The cubic root of 2340121243 is about 1327.6373232037.

Adding to 2340121243 its reverse (3421210432), we get a palindrome (5761331675).

It can be divided in two parts, 23401 and 21243, that added together give a palindrome (44644).

The spelling of 2340121243 in words is "two billion, three hundred forty million, one hundred twenty-one thousand, two hundred forty-three".