23130200020 has 24 divisors (see below), whose sum is σ = 49758139368. Its totient is φ = 9026419200.

The previous prime is 23130199991. The next prime is 23130200021. The reversal of 23130200020 is 2000203132.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2762343364 + 20367856656 = 52558^2 + 142716^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23130200021) 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, 14102961 + ... + 14104600.

It is an arithmetic number, because the mean of its divisors is an integer number (2073255807).

Almost surely, 2^23130200020 is an apocalyptic number.

23130200020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23130200020 is an abundant number, since it is smaller than the sum of its proper divisors (26627939348).

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

23130200020 is a wasteful number, since it uses less digits than its factorization.

23130200020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28207611 (or 28207609 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 23130200020 its reverse (2000203132), we get a palindrome (25130403152).

The spelling of 23130200020 in words is "twenty-three billion, one hundred thirty million, two hundred thousand, twenty".