20323113020 has 48 divisors (see below), whose sum is σ = 49813263360. Its totient is φ = 6819668544.

The previous prime is 20323113001. The next prime is 20323113043. The reversal of 20323113020 is 2031132302.

It is a self number, because there is not a number n which added to its sum of digits gives 20323113020.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1537730 + ... + 1550889.

It is an arithmetic number, because the mean of its divisors is an integer number (1037776320).

Almost surely, 2^20323113020 is an apocalyptic number.

20323113020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20323113020 is an abundant number, since it is smaller than the sum of its proper divisors (29490150340).

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

20323113020 is a wasteful number, since it uses less digits than its factorization.

20323113020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3088682 (or 3088680 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20323113020 its reverse (2031132302), we get a palindrome (22354245322).

The spelling of 20323113020 in words is "twenty billion, three hundred twenty-three million, one hundred thirteen thousand, twenty".