243312351213 has 16 divisors (see below), whose sum is σ = 338916243456. Its totient is φ = 155084431920.

The previous prime is 243312351173. The next prime is 243312351253. The reversal of 243312351213 is 312153213342.

It is an interprime number because it is at equal distance from previous prime (243312351173) and next prime (243312351253).

It is not a de Polignac number, because 243312351213 - 2¹⁴ = 243312334829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243312351253) 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 15 ways as a sum of consecutive naturals, for example, 15752895 + ... + 15768332.

It is an arithmetic number, because the mean of its divisors is an integer number (21182265216).

Almost surely, 2^243312351213 is an apocalyptic number.

It is an amenable number.

243312351213 is a deficient number, since it is larger than the sum of its proper divisors (95603892243).

243312351213 is a wasteful number, since it uses less digits than its factorization.

243312351213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31521344.

The product of its digits is 12960, while the sum is 30.

Adding to 243312351213 its reverse (312153213342), we get a palindrome (555465564555).

The spelling of 243312351213 in words is "two hundred forty-three billion, three hundred twelve million, three hundred fifty-one thousand, two hundred thirteen".