240001333243 has 4 divisors (see below), whose sum is σ = 274287238000. Its totient is φ = 205715428488.

The previous prime is 240001333241. The next prime is 240001333249. The reversal of 240001333243 is 342333100042.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 240001333243 - 2¹ = 240001333241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240001333241) 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, 17142952368 + ... + 17142952381.

It is an arithmetic number, because the mean of its divisors is an integer number (68571809500).

Almost surely, 2^240001333243 is an apocalyptic number.

240001333243 is a deficient number, since it is larger than the sum of its proper divisors (34285904757).

240001333243 is an equidigital number, since it uses as much as digits as its factorization.

240001333243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34285904756.

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 240001333243 its reverse (342333100042), we get a palindrome (582334433285).

The spelling of 240001333243 in words is "two hundred forty billion, one million, three hundred thirty-three thousand, two hundred forty-three".