20425130020 has 24 divisors (see below), whose sum is σ = 43063671168. Its totient is φ = 8137500000.

The previous prime is 20425129997. The next prime is 20425130021. The reversal of 20425130020 is 2003152402.

It is a self number, because there is not a number n which added to its sum of digits gives 20425130020.

It is not an unprimeable number, because it can be changed into a prime (20425130021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2029356 + ... + 2039395.

It is an arithmetic number, because the mean of its divisors is an integer number (1794319632).

Almost surely, 2^20425130020 is an apocalyptic number.

20425130020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20425130020 is an abundant number, since it is smaller than the sum of its proper divisors (22638541148).

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

20425130020 is a wasteful number, since it uses less digits than its factorization.

20425130020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4069011 (or 4069009 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

Adding to 20425130020 its reverse (2003152402), we get a palindrome (22428282422).

The spelling of 20425130020 in words is "twenty billion, four hundred twenty-five million, one hundred thirty thousand, twenty".