21112312330342 has 8 divisors (see below), whose sum is σ = 31680569561256. Its totient is φ = 10552122476592.

The previous prime is 21112312330339. The next prime is 21112312330397. The reversal of 21112312330342 is 24303321321112.

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

It is a self number, because there is not a number n which added to its sum of digits gives 21112312330342.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2016837748 + ... + 2016848215.

It is an arithmetic number, because the mean of its divisors is an integer number (3960071195157).

Almost surely, 2^{21112312330342} is an apocalyptic number.

21112312330342 is a deficient number, since it is larger than the sum of its proper divisors (10568257230914).

21112312330342 is a wasteful number, since it uses less digits than its factorization.

21112312330342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4033688582.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 21112312330342 its reverse (24303321321112), we get a palindrome (45415633651454).

The spelling of 21112312330342 in words is "twenty-one trillion, one hundred twelve billion, three hundred twelve million, three hundred thirty thousand, three hundred forty-two".