240002645121 has 24 divisors (see below), whose sum is σ = 347296622400. Its totient is φ = 159713013600.

The previous prime is 240002645117. The next prime is 240002645131. The reversal of 240002645121 is 121546200042.

240002645121 is a `hidden beast` number, since 2 + 4 + 0 + 0 + 0 + 2 + 645 + 12 + 1 = 666.

240002645121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 240002645121 - 2² = 240002645117 is a prime.

It is not an unprimeable number, because it can be changed into a prime (240002645131) 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 23 ways as a sum of consecutive naturals, for example, 14217316 + ... + 14234186.

It is an arithmetic number, because the mean of its divisors is an integer number (14470692600).

Almost surely, 2^240002645121 is an apocalyptic number.

It is an amenable number.

240002645121 is a deficient number, since it is larger than the sum of its proper divisors (107293977279).

240002645121 is a wasteful number, since it uses less digits than its factorization.

240002645121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19637 (or 19634 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 240002645121 its reverse (121546200042), we get a palindrome (361548845163).

The spelling of 240002645121 in words is "two hundred forty billion, two million, six hundred forty-five thousand, one hundred twenty-one".