243346121643342 has 16 divisors (see below), whose sum is σ = 515321198774352. Its totient is φ = 76343881299840.

The previous prime is 243346121643221. The next prime is 243346121643347.

243346121643342 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 243346121643291 and 243346121643300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243346121643347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1192873145209 + ... + 1192873145412.

It is an arithmetic number, because the mean of its divisors is an integer number (32207574923397).

Almost surely, 2^{243346121643342} is an apocalyptic number.

243346121643342 is an abundant number, since it is smaller than the sum of its proper divisors (271975077131010).

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

243346121643342 is a wasteful number, since it uses less digits than its factorization.

243346121643342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2385746290643.

The product of its digits is 5971968, while the sum is 48.

The spelling of 243346121643342 in words is "two hundred forty-three trillion, three hundred forty-six billion, one hundred twenty-one million, six hundred forty-three thousand, three hundred forty-two".