342443121211 has 16 divisors (see below), whose sum is σ = 378313194240. Its totient is φ = 308520796320.

The previous prime is 342443121197. The next prime is 342443121227. The reversal of 342443121211 is 112121344243.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 342443121211 - 2⁵ = 342443121179 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 342443121211.

It is not an unprimeable number, because it can be changed into a prime (342443121281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2189205 + ... + 2340406.

It is an arithmetic number, because the mean of its divisors is an integer number (23644574640).

Almost surely, 2^342443121211 is an apocalyptic number.

342443121211 is a deficient number, since it is larger than the sum of its proper divisors (35870073029).

342443121211 is a wasteful number, since it uses less digits than its factorization.

342443121211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4529826.

The product of its digits is 4608, while the sum is 28.

Adding to 342443121211 its reverse (112121344243), we get a palindrome (454564465454).

The spelling of 342443121211 in words is "three hundred forty-two billion, four hundred forty-three million, one hundred twenty-one thousand, two hundred eleven".