213412304240342 has 4 divisors (see below), whose sum is σ = 320118456360516. Its totient is φ = 106706152120170.

The previous prime is 213412304240341. The next prime is 213412304240353. The reversal of 213412304240342 is 243042403214312.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213412304240341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53353076060084 + ... + 53353076060087.

It is an arithmetic number, because the mean of its divisors is an integer number (80029614090129).

Almost surely, 2^{213412304240342} is an apocalyptic number.

213412304240342 is a deficient number, since it is larger than the sum of its proper divisors (106706152120174).

213412304240342 is a wasteful number, since it uses less digits than its factorization.

213412304240342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106706152120173.

The product of its (nonzero) digits is 110592, while the sum is 35.

Adding to 213412304240342 its reverse (243042403214312), we get a palindrome (456454707454654).

The spelling of 213412304240342 in words is "two hundred thirteen trillion, four hundred twelve billion, three hundred four million, two hundred forty thousand, three hundred forty-two".