243120202021342 has 16 divisors (see below), whose sum is σ = 364804597827072. Its totient is φ = 121518670717080.

The previous prime is 243120202021313. The next prime is 243120202021363.

243120202021342 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 243120202021342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 417807217 + ... + 418388707.

It is an arithmetic number, because the mean of its divisors is an integer number (22800287364192).

Almost surely, 2^{243120202021342} is an apocalyptic number.

243120202021342 is a deficient number, since it is larger than the sum of its proper divisors (121684395805730).

243120202021342 is a wasteful number, since it uses less digits than its factorization.

243120202021342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652383.

The product of its (nonzero) digits is 9216, while the sum is 28.

It can be divided in two parts, 24312020 and 2021342, that added together give a palindrome (26333362).

The spelling of 243120202021342 in words is "two hundred forty-three trillion, one hundred twenty billion, two hundred two million, twenty-one thousand, three hundred forty-two".