21035341424 has 10 divisors (see below), whose sum is σ = 40755974040. Its totient is φ = 10517670704.

The previous prime is 21035341421. The next prime is 21035341433. The reversal of 21035341424 is 42414353012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21035341421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 657354404 + ... + 657354435.

It is an arithmetic number, because the mean of its divisors is an integer number (4075597404).

Almost surely, 2^21035341424 is an apocalyptic number.

It is an amenable number.

21035341424 is a deficient number, since it is larger than the sum of its proper divisors (19720632616).

21035341424 is a wasteful number, since it uses less digits than its factorization.

21035341424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1314708847 (or 1314708841 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 21035341424 its reverse (42414353012), we get a palindrome (63449694436).

The spelling of 21035341424 in words is "twenty-one billion, thirty-five million, three hundred forty-one thousand, four hundred twenty-four".