20213424424 has 16 divisors (see below), whose sum is σ = 38034097920. Its totient is φ = 10070998320.

The previous prime is 20213424389. The next prime is 20213424437. The reversal of 20213424424 is 42442431202.

It is a super-3 number, since 3×20213424424³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20213424392 and 20213424401.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4461832 + ... + 4466359.

It is an arithmetic number, because the mean of its divisors is an integer number (2377131120).

Almost surely, 2^20213424424 is an apocalyptic number.

It is an amenable number.

20213424424 is a deficient number, since it is larger than the sum of its proper divisors (17820673496).

20213424424 is a wasteful number, since it uses less digits than its factorization.

20213424424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8928480 (or 8928476 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 20213424424 its reverse (42442431202), we get a palindrome (62655855626).

The spelling of 20213424424 in words is "twenty billion, two hundred thirteen million, four hundred twenty-four thousand, four hundred twenty-four".