342121121243 has 6 divisors (see below), whose sum is σ = 376050488772. Its totient is φ = 311019201020.

The previous prime is 342121121213. The next prime is 342121121347.

It is a happy number.

342121121243 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 342121121243 - 2¹⁴ = 342121104859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (342121121203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1413723521 + ... + 1413723762.

It is an arithmetic number, because the mean of its divisors is an integer number (62675081462).

Almost surely, 2^342121121243 is an apocalyptic number.

342121121243 is a deficient number, since it is larger than the sum of its proper divisors (33929367529).

342121121243 is a wasteful number, since it uses less digits than its factorization.

342121121243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2827447305 (or 2827447294 counting only the distinct ones).

The product of its digits is 2304, while the sum is 26.

It can be divided in two parts, 342121 and 121243, that added together give a palindrome (463364).

The spelling of 342121121243 in words is "three hundred forty-two billion, one hundred twenty-one million, one hundred twenty-one thousand, two hundred forty-three".