21210344142333 has 8 divisors (see below), whose sum is σ = 28313612973408. Its totient is φ = 14123652369744.

The previous prime is 21210344142329. The next prime is 21210344142359. The reversal of 21210344142333 is 33324144301212.

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

It is not a de Polignac number, because 21210344142333 - 2² = 21210344142329 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21210344142294 and 21210344142303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21210344142373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4144261635 + ... + 4144266752.

It is an arithmetic number, because the mean of its divisors is an integer number (3539201621676).

Almost surely, 2^{21210344142333} is an apocalyptic number.

It is an amenable number.

21210344142333 is a deficient number, since it is larger than the sum of its proper divisors (7103268831075).

21210344142333 is an equidigital number, since it uses as much as digits as its factorization.

21210344142333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8288529243.

The product of its (nonzero) digits is 41472, while the sum is 33.

Adding to 21210344142333 its reverse (33324144301212), we get a palindrome (54534488443545).

The spelling of 21210344142333 in words is "twenty-one trillion, two hundred ten billion, three hundred forty-four million, one hundred forty-two thousand, three hundred thirty-three".