243345230311 has 8 divisors (see below), whose sum is σ = 247519314000. Its totient is φ = 239172799680.

The previous prime is 243345230299. The next prime is 243345230327. The reversal of 243345230311 is 113032543342.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243345230311 is a prime.

It is a super-2 number, since 2×243345230311² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243345230351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114486 + ... + 706963.

It is an arithmetic number, because the mean of its divisors is an integer number (30939914250).

Almost surely, 2^243345230311 is an apocalyptic number.

243345230311 is a deficient number, since it is larger than the sum of its proper divisors (4174083689).

243345230311 is an equidigital number, since it uses as much as digits as its factorization.

243345230311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826529.

The product of its (nonzero) digits is 25920, while the sum is 31.

Adding to 243345230311 its reverse (113032543342), we get a palindrome (356377773653).

The spelling of 243345230311 in words is "two hundred forty-three billion, three hundred forty-five million, two hundred thirty thousand, three hundred eleven".