20320434130 has 16 divisors (see below), whose sum is σ = 36631142424. Its totient is φ = 8116093440.

The previous prime is 20320434119. The next prime is 20320434133. The reversal of 20320434130 is 3143402302.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 13931789089 + 6388645041 = 118033^2 + 79929^2 .

It is not an unprimeable number, because it can be changed into a prime (20320434133) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1502961 + ... + 1516420.

Almost surely, 2^20320434130 is an apocalyptic number.

20320434130 is a deficient number, since it is larger than the sum of its proper divisors (16310708294).

20320434130 is a wasteful number, since it uses less digits than its factorization.

20320434130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3020061.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 20320434130 its reverse (3143402302), we get a palindrome (23463836432).

The spelling of 20320434130 in words is "twenty billion, three hundred twenty million, four hundred thirty-four thousand, one hundred thirty".