20320320130 has 48 divisors (see below), whose sum is σ = 40247497080. Its totient is φ = 7381214720.

The previous prime is 20320320109. The next prime is 20320320143. The reversal of 20320320130 is 3102302302.

It can be written as a sum of positive squares in 4 ways, for example, as 20238761169 + 81558961 = 142263^2 + 9031^2 .

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, 1173576 + ... + 1190764.

Almost surely, 2^20320320130 is an apocalyptic number.

20320320130 is a deficient number, since it is larger than the sum of its proper divisors (19927176950).

20320320130 is a wasteful number, since it uses less digits than its factorization.

20320320130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18195 (or 18184 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 20320320130 its reverse (3102302302), we get a palindrome (23422622432).

The spelling of 20320320130 in words is "twenty billion, three hundred twenty million, three hundred twenty thousand, one hundred thirty".