243343143340 has 48 divisors (see below), whose sum is σ = 586817925120. Its totient is φ = 83831129280.

The previous prime is 243343143319. The next prime is 243343143347. The reversal of 243343143340 is 43341343342.

It is a junction number, because it is equal to n+sod(n) for n = 243343143296 and 243343143305.

It is not an unprimeable number, because it can be changed into a prime (243343143347) 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 15 ways as a sum of consecutive naturals, for example, 29103852 + ... + 29112211.

It is an arithmetic number, because the mean of its divisors is an integer number (12225373440).

Almost surely, 2^243343143340 is an apocalyptic number.

243343143340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243343143340 is an abundant number, since it is smaller than the sum of its proper divisors (343474781780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243343143340 is a wasteful number, since it uses less digits than its factorization.

243343143340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58216102 (or 58216100 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 34.

Adding to 243343143340 its reverse (43341343342), we get a palindrome (286684486682).

It can be divided in two parts, 243343 and 143340, that added together give a palindrome (386683).

The spelling of 243343143340 in words is "two hundred forty-three billion, three hundred forty-three million, one hundred forty-three thousand, three hundred forty".