20321003424414 has 128 divisors (see below), whose sum is σ = 52878266449920. Its totient is φ = 5048252985600.

The previous prime is 20321003424409. The next prime is 20321003424431. The reversal of 20321003424414 is 41442430012302.

It is a super-2 number, since 2×20321003424414² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 in 63 ways as a sum of consecutive naturals, for example, 130420047 + ... + 130575765.

It is an arithmetic number, because the mean of its divisors is an integer number (413111456640).

Almost surely, 2^{20321003424414} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20321003424414, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26439133224960).

20321003424414 is an abundant number, since it is smaller than the sum of its proper divisors (32557263025506).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20321003424414 is a wasteful number, since it uses less digits than its factorization.

20321003424414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168046.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 20321003424414 its reverse (41442430012302), we get a palindrome (61763433436716).

The spelling of 20321003424414 in words is "twenty trillion, three hundred twenty-one billion, three million, four hundred twenty-four thousand, four hundred fourteen".