21334210303143 has 16 divisors (see below), whose sum is σ = 28472845368320. Its totient is φ = 14209196144544.

The previous prime is 21334210303139. The next prime is 21334210303151. The reversal of 21334210303143 is 34130301243312.

It is not a de Polignac number, because 21334210303143 - 2² = 21334210303139 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 21334210303143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21334210303843) 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, 16198953 + ... + 17466381.

It is an arithmetic number, because the mean of its divisors is an integer number (1779552835520).

Almost surely, 2^{21334210303143} is an apocalyptic number.

21334210303143 is a deficient number, since it is larger than the sum of its proper divisors (7138635065177).

21334210303143 is a wasteful number, since it uses less digits than its factorization.

21334210303143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1272798.

The product of its (nonzero) digits is 15552, while the sum is 30.

Adding to 21334210303143 its reverse (34130301243312), we get a palindrome (55464511546455).

The spelling of 21334210303143 in words is "twenty-one trillion, three hundred thirty-four billion, two hundred ten million, three hundred three thousand, one hundred forty-three".