21033342443134 has 32 divisors (see below), whose sum is σ = 36868753198080. Its totient is φ = 8811853658208.

The previous prime is 21033342443083. The next prime is 21033342443177. The reversal of 21033342443134 is 43134424333012.

It is a junction number, because it is equal to n+sod(n) for n = 21033342443093 and 21033342443102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18734112 + ... + 19825075.

It is an arithmetic number, because the mean of its divisors is an integer number (1152148537440).

Almost surely, 2^{21033342443134} is an apocalyptic number.

21033342443134 is a deficient number, since it is larger than the sum of its proper divisors (15835410754946).

21033342443134 is a wasteful number, since it uses less digits than its factorization.

21033342443134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38560072.

The product of its (nonzero) digits is 248832, while the sum is 37.

Adding to 21033342443134 its reverse (43134424333012), we get a palindrome (64167766776146).

The spelling of 21033342443134 in words is "twenty-one trillion, thirty-three billion, three hundred forty-two million, four hundred forty-three thousand, one hundred thirty-four".