21334210303433 has 2 divisors, whose sum is σ = 21334210303434. Its totient is φ = 21334210303432.

The previous prime is 21334210303361. The next prime is 21334210303459. The reversal of 21334210303433 is 33430301243312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13183202433424 + 8151007870009 = 3630868^2 + 2854997^2 .

It is a cyclic number.

It is not a de Polignac number, because 21334210303433 - 2³² = 21329915336137 is a prime.

It is a super-2 number, since 2×21334210303433² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21334210303433.

It is not a weakly prime, because it can be changed into another prime (21334210333433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10667105151716 + 10667105151717.

It is an arithmetic number, because the mean of its divisors is an integer number (10667105151717).

Almost surely, 2^{21334210303433} is an apocalyptic number.

It is an amenable number.

21334210303433 is a deficient number, since it is larger than the sum of its proper divisors (1).

21334210303433 is an equidigital number, since it uses as much as digits as its factorization.

21334210303433 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 32.

Adding to 21334210303433 its reverse (33430301243312), we get a palindrome (54764511546745).

The spelling of 21334210303433 in words is "twenty-one trillion, three hundred thirty-four billion, two hundred ten million, three hundred three thousand, four hundred thirty-three".