243345231011 has 4 divisors (see below), whose sum is σ = 243359877912. Its totient is φ = 243330584112.

The previous prime is 243345230951. The next prime is 243345231047. The reversal of 243345231011 is 110132543342.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243345231011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243345231071) 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, 7298501 + ... + 7331766.

It is an arithmetic number, because the mean of its divisors is an integer number (60839969478).

Almost surely, 2^243345231011 is an apocalyptic number.

243345231011 is a deficient number, since it is larger than the sum of its proper divisors (14646901).

243345231011 is a wasteful number, since it uses less digits than its factorization.

243345231011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14646900.

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 243345231011 its reverse (110132543342), we get a palindrome (353477774353).

The spelling of 243345231011 in words is "two hundred forty-three billion, three hundred forty-five million, two hundred thirty-one thousand, eleven".