20512554003130 has 32 divisors (see below), whose sum is σ = 42318163036800. Its totient is φ = 7012724143680.

The previous prime is 20512554003091. The next prime is 20512554003133. The reversal of 20512554003130 is 3130045521502.

It is a junction number, because it is equal to n+sod(n) for n = 20512554003092 and 20512554003101.

It is not an unprimeable number, because it can be changed into a prime (20512554003133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 419798616 + ... + 419847475.

It is an arithmetic number, because the mean of its divisors is an integer number (1322442594900).

Almost surely, 2^{20512554003130} is an apocalyptic number.

20512554003130 is an abundant number, since it is smaller than the sum of its proper divisors (21805609033670).

20512554003130 is a wasteful number, since it uses less digits than its factorization.

20512554003130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839646454.

The product of its (nonzero) digits is 18000, while the sum is 31.

Adding to 20512554003130 its reverse (3130045521502), we get a palindrome (23642599524632).

The spelling of 20512554003130 in words is "twenty trillion, five hundred twelve billion, five hundred fifty-four million, three thousand, one hundred thirty".