243521121125342 has 8 divisors (see below), whose sum is σ = 365298424737456. Its totient is φ = 121754979546192.

The previous prime is 243521121125341. The next prime is 243521121125371.

243521121125342 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 243521121125296 and 243521121125305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243521121125341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2790453698 + ... + 2790540965.

It is an arithmetic number, because the mean of its divisors is an integer number (45662303092182).

Almost surely, 2^{243521121125342} is an apocalyptic number.

243521121125342 is a deficient number, since it is larger than the sum of its proper divisors (121777303612114).

243521121125342 is a wasteful number, since it uses less digits than its factorization.

243521121125342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5581016482.

The product of its digits is 115200, while the sum is 38.

The spelling of 243521121125342 in words is "two hundred forty-three trillion, five hundred twenty-one billion, one hundred twenty-one million, one hundred twenty-five thousand, three hundred forty-two".