20020353430 has 32 divisors (see below), whose sum is σ = 44928794880. Its totient is φ = 6240109920.

The previous prime is 20020353361. The next prime is 20020353469. The reversal of 20020353430 is 3435302002.

It is a super-2 number, since 2×20020353430² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12999460 + ... + 13000999.

It is an arithmetic number, because the mean of its divisors is an integer number (1404024840).

Almost surely, 2^20020353430 is an apocalyptic number.

20020353430 is an abundant number, since it is smaller than the sum of its proper divisors (24908441450).

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

20020353430 is a wasteful number, since it uses less digits than its factorization.

20020353430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26000484.

The product of its (nonzero) digits is 2160, while the sum is 22.

Adding to 20020353430 its reverse (3435302002), we get a palindrome (23455655432).

The spelling of 20020353430 in words is "twenty billion, twenty million, three hundred fifty-three thousand, four hundred thirty".