240340121313 has 8 divisors (see below), whose sum is σ = 320802196800. Its totient is φ = 160052396688.

The previous prime is 240340121303. The next prime is 240340121323. The reversal of 240340121313 is 313121043042.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (240340121303) and next prime (240340121323).

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

It is not a de Polignac number, because 240340121313 - 2⁸ = 240340121057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (240340121303) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 43584498 + ... + 43590011.

It is an arithmetic number, because the mean of its divisors is an integer number (40100274600).

Almost surely, 2^240340121313 is an apocalyptic number.

It is an amenable number.

240340121313 is a deficient number, since it is larger than the sum of its proper divisors (80462075487).

240340121313 is an equidigital number, since it uses as much as digits as its factorization.

240340121313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87175431.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 240340121313 its reverse (313121043042), we get a palindrome (553461164355).

The spelling of 240340121313 in words is "two hundred forty billion, three hundred forty million, one hundred twenty-one thousand, three hundred thirteen".