240003340243 has 4 divisors (see below), whose sum is σ = 240150854680. Its totient is φ = 239855825808.

The previous prime is 240003340237. The next prime is 240003340249. The reversal of 240003340243 is 342043300042.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342043300042 = 2 ⋅171021650021.

It is an interprime number because it is at equal distance from previous prime (240003340237) and next prime (240003340249).

It is a cyclic number.

It is not a de Polignac number, because 240003340243 - 2²¹ = 240001243091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240003340249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73754778 + ... + 73758031.

It is an arithmetic number, because the mean of its divisors is an integer number (60037713670).

Almost surely, 2^240003340243 is an apocalyptic number.

240003340243 is a deficient number, since it is larger than the sum of its proper divisors (147514437).

240003340243 is a wasteful number, since it uses less digits than its factorization.

240003340243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147514436.

The product of its (nonzero) digits is 6912, while the sum is 25.

Adding to 240003340243 its reverse (342043300042), we get a palindrome (582046640285).

The spelling of 240003340243 in words is "two hundred forty billion, three million, three hundred forty thousand, two hundred forty-three".