20320144130 has 64 divisors (see below), whose sum is σ = 45232387200. Its totient is φ = 6461752320.

The previous prime is 20320144069. The next prime is 20320144223. The reversal of 20320144130 is 3144102302.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 346775 + ... + 401114.

It is an arithmetic number, because the mean of its divisors is an integer number (706756050).

Almost surely, 2^20320144130 is an apocalyptic number.

20320144130 is an abundant number, since it is smaller than the sum of its proper divisors (24912243070).

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

20320144130 is a wasteful number, since it uses less digits than its factorization.

20320144130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747939.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 20320144130 its reverse (3144102302), we get a palindrome (23464246432).

The spelling of 20320144130 in words is "twenty billion, three hundred twenty million, one hundred forty-four thousand, one hundred thirty".