20443044130 has 16 divisors (see below), whose sum is σ = 36799129080. Its totient is φ = 8176851072.

The previous prime is 20443044103. The next prime is 20443044143. The reversal of 20443044130 is 3144034402.

It can be written as a sum of positive squares in 4 ways, for example, as 4431431761 + 16011612369 = 66569^2 + 126537^2 .

It is a super-2 number, since 2×20443044130² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20443044095 and 20443044104.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 357136 + ... + 410404.

Almost surely, 2^20443044130 is an apocalyptic number.

20443044130 is a deficient number, since it is larger than the sum of its proper divisors (16356084950).

20443044130 is a wasteful number, since it uses less digits than its factorization.

20443044130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91653.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 20443044130 its reverse (3144034402), we get a palindrome (23587078532).

The spelling of 20443044130 in words is "twenty billion, four hundred forty-three million, forty-four thousand, one hundred thirty".