20130020875020 has 96 divisors (see below), whose sum is σ = 64416662102016. Its totient is φ = 4601105107200.

The previous prime is 20130020875009. The next prime is 20130020875021. The reversal of 20130020875020 is 2057802003102.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (20130020875021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78841365 + ... + 79096275.

It is an arithmetic number, because the mean of its divisors is an integer number (671006896896).

Almost surely, 2^{20130020875020} is an apocalyptic number.

20130020875020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20130020875020 is an abundant number, since it is smaller than the sum of its proper divisors (44286641226996).

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

20130020875020 is a wasteful number, since it uses less digits than its factorization.

20130020875020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442951 (or 442949 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

Adding to 20130020875020 its reverse (2057802003102), we get a palindrome (22187822878122).

The spelling of 20130020875020 in words is "twenty trillion, one hundred thirty billion, twenty million, eight hundred seventy-five thousand, twenty".