243043340342 has 64 divisors (see below), whose sum is σ = 418908672000. Its totient is φ = 104679358080.

The previous prime is 243043340339. The next prime is 243043340387.

243043340342 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 243043340299 and 243043340308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29324123 + ... + 29332409.

It is an arithmetic number, because the mean of its divisors is an integer number (6545448000).

Almost surely, 2^243043340342 is an apocalyptic number.

243043340342 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

243043340342 is a deficient number, since it is larger than the sum of its proper divisors (175865331658).

243043340342 is a wasteful number, since it uses less digits than its factorization.

243043340342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8861.

The product of its (nonzero) digits is 82944, while the sum is 32.

It can be divided in two parts, 243043 and 340342, that added together give a palindrome (583385).

The spelling of 243043340342 in words is "two hundred forty-three billion, forty-three million, three hundred forty thousand, three hundred forty-two".