20430442130 has 32 divisors (see below), whose sum is σ = 42033755520. Its totient is φ = 7003820160.

The previous prime is 20430442129. The next prime is 20430442157. The reversal of 20430442130 is 3124403402.

It is a junction number, because it is equal to n+sod(n) for n = 20430442096 and 20430442105.

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 15 ways as a sum of consecutive naturals, for example, 752390 + ... + 779070.

It is an arithmetic number, because the mean of its divisors is an integer number (1313554860).

Almost surely, 2^20430442130 is an apocalyptic number.

20430442130 is an abundant number, since it is smaller than the sum of its proper divisors (21603313390).

20430442130 is a wasteful number, since it uses less digits than its factorization.

20430442130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37634.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 20430442130 its reverse (3124403402), we get a palindrome (23554845532).

The spelling of 20430442130 in words is "twenty billion, four hundred thirty million, four hundred forty-two thousand, one hundred thirty".