20303143422 has 48 divisors (see below), whose sum is σ = 42148339632. Its totient is φ = 6519340800.

The previous prime is 20303143387. The next prime is 20303143433. The reversal of 20303143422 is 22434130302.

It is a junction number, because it is equal to n+sod(n) for n = 20303143392 and 20303143401.

It is a congruent number.

It is an unprimeable number.

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 in 23 ways as a sum of consecutive naturals, for example, 817378 + ... + 841850.

It is an arithmetic number, because the mean of its divisors is an integer number (878090409).

Almost surely, 2^20303143422 is an apocalyptic number.

20303143422 is an abundant number, since it is smaller than the sum of its proper divisors (21845196210).

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

20303143422 is a wasteful number, since it uses less digits than its factorization.

20303143422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24653 (or 24616 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 20303143422 its reverse (22434130302), we get a palindrome (42737273724).

The spelling of 20303143422 in words is "twenty billion, three hundred three million, one hundred forty-three thousand, four hundred twenty-two".