240343213121 has 8 divisors (see below), whose sum is σ = 262274493024. Its totient is φ = 218425582720.

The previous prime is 240343213093. The next prime is 240343213127. The reversal of 240343213121 is 121312343042.

240343213121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 240343213121 - 2³⁰ = 239269471297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240343213127) 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, 3375536 + ... + 3446001.

It is an arithmetic number, because the mean of its divisors is an integer number (32784311628).

Almost surely, 2^240343213121 is an apocalyptic number.

It is an amenable number.

240343213121 is a deficient number, since it is larger than the sum of its proper divisors (21931279903).

240343213121 is a wasteful number, since it uses less digits than its factorization.

240343213121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6824751.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 240343213121 its reverse (121312343042), we get a palindrome (361655556163).

The spelling of 240343213121 in words is "two hundred forty billion, three hundred forty-three million, two hundred thirteen thousand, one hundred twenty-one".