21334210303442 has 8 divisors (see below), whose sum is σ = 32005222367232. Its totient is φ = 10665802847700.

The previous prime is 21334210303433. The next prime is 21334210303459. The reversal of 21334210303442 is 24430301243312.

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

It is a junction number, because it is equal to n+sod(n) for n = 21334210303399 and 21334210303408.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 651131534 + ... + 651164297.

It is an arithmetic number, because the mean of its divisors is an integer number (4000652795904).

Almost surely, 2^{21334210303442} is an apocalyptic number.

21334210303442 is a deficient number, since it is larger than the sum of its proper divisors (10671012063790).

21334210303442 is a wasteful number, since it uses less digits than its factorization.

21334210303442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1302304024.

The product of its (nonzero) digits is 41472, while the sum is 32.

Adding to 21334210303442 its reverse (24430301243312), we get a palindrome (45764511546754).

The spelling of 21334210303442 in words is "twenty-one trillion, three hundred thirty-four billion, two hundred ten million, three hundred three thousand, four hundred forty-two".