243342404243342 has 16 divisors (see below), whose sum is σ = 366049605950352. Its totient is φ = 121325872631040.

The previous prime is 243342404243317. The next prime is 243342404243399.

243342404243342 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 243342404243293 and 243342404243302.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 147380417 + ... + 149022387.

It is an arithmetic number, because the mean of its divisors is an integer number (22878100371897).

Almost surely, 2^{243342404243342} is an apocalyptic number.

243342404243342 is a deficient number, since it is larger than the sum of its proper divisors (122707201707010).

243342404243342 is a wasteful number, since it uses less digits than its factorization.

243342404243342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1852243.

The product of its (nonzero) digits is 5308416, while the sum is 44.

It can be divided in two parts, 24334240 and 4243342, that added together give a palindrome (28577582).

The spelling of 243342404243342 in words is "two hundred forty-three trillion, three hundred forty-two billion, four hundred four million, two hundred forty-three thousand, three hundred forty-two".