20334310021 has 16 divisors (see below), whose sum is σ = 21104411328. Its totient is φ = 19577795200.

The previous prime is 20334310013. The next prime is 20334310049. The reversal of 20334310021 is 12001343302.

It is not a de Polignac number, because 20334310021 - 2³ = 20334310013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20334310001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3709935 + ... + 3715411.

It is an arithmetic number, because the mean of its divisors is an integer number (1319025708).

Almost surely, 2^20334310021 is an apocalyptic number.

It is an amenable number.

20334310021 is a deficient number, since it is larger than the sum of its proper divisors (770101307).

20334310021 is a wasteful number, since it uses less digits than its factorization.

20334310021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6692.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20334310021 its reverse (12001343302), we get a palindrome (32335653323).

The spelling of 20334310021 in words is "twenty billion, three hundred thirty-four million, three hundred ten thousand, twenty-one".