21233020002343 has 2 divisors, whose sum is σ = 21233020002344. Its totient is φ = 21233020002342.

The previous prime is 21233020002223. The next prime is 21233020002349. The reversal of 21233020002343 is 34320002033212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21233020002343 - 2²¹ = 21233017905191 is a prime.

It is a super-2 number, since 2×21233020002343² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21233020002349) by changing a digit.

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 as a sum of consecutive naturals, namely, 10616510001171 + 10616510001172.

It is an arithmetic number, because the mean of its divisors is an integer number (10616510001172).

Almost surely, 2^{21233020002343} is an apocalyptic number.

21233020002343 is a deficient number, since it is larger than the sum of its proper divisors (1).

21233020002343 is an equidigital number, since it uses as much as digits as its factorization.

21233020002343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 21233020002343 its reverse (34320002033212), we get a palindrome (55553022035555).

The spelling of 21233020002343 in words is "twenty-one trillion, two hundred thirty-three billion, twenty million, two thousand, three hundred forty-three".