20310302020 has 24 divisors (see below), whose sum is σ = 43691919768. Its totient is φ = 7925971200.

The previous prime is 20310301937. The next prime is 20310302021. The reversal of 20310302020 is 2020301302.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1718434116 + 18591867904 = 41454^2 + 136352^2 .

It is not an unprimeable number, because it can be changed into a prime (20310302021) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 12383511 + ... + 12385150.

It is an arithmetic number, because the mean of its divisors is an integer number (1820496657).

Almost surely, 2^20310302020 is an apocalyptic number.

20310302020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20310302020 is an abundant number, since it is smaller than the sum of its proper divisors (23381617748).

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

20310302020 is a wasteful number, since it uses less digits than its factorization.

20310302020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24768711 (or 24768709 counting only the distinct ones).

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

Adding to 20310302020 its reverse (2020301302), we get a palindrome (22330603322).

The spelling of 20310302020 in words is "twenty billion, three hundred ten million, three hundred two thousand, twenty".