20430214144 has 44 divisors (see below), whose sum is σ = 41532811200. Its totient is φ = 10041939968.

The previous prime is 20430214099. The next prime is 20430214157. The reversal of 20430214144 is 44141203402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108664 + ... + 229495.

Almost surely, 2^20430214144 is an apocalyptic number.

It is an amenable number.

20430214144 is an abundant number, since it is smaller than the sum of its proper divisors (21102597056).

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

20430214144 is an equidigital number, since it uses as much as digits as its factorization.

20430214144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338238 (or 338220 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 20430214144 its reverse (44141203402), we get a palindrome (64571417546).

The spelling of 20430214144 in words is "twenty billion, four hundred thirty million, two hundred fourteen thousand, one hundred forty-four".