100302020020 has 24 divisors (see below), whose sum is σ = 210651674184. Its totient is φ = 40117487616.

The previous prime is 100302020011. The next prime is 100302020041. The reversal of 100302020020 is 20020203001.

It can be written as a sum of positive squares in 4 ways, for example, as 37219669776 + 63082350244 = 192924^2 + 251162^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 100302019979 and 100302020006.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 47844 + ... + 450436.

It is an arithmetic number, because the mean of its divisors is an integer number (8777153091).

Almost surely, 2^100302020020 is an apocalyptic number.

100302020020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100302020020 is an abundant number, since it is smaller than the sum of its proper divisors (110349654164).

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

100302020020 is a wasteful number, since it uses less digits than its factorization.

100302020020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415059 (or 415057 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

Adding to 100302020020 its reverse (20020203001), we get a palindrome (120322223021).

The spelling of 100302020020 in words is "one hundred billion, three hundred two million, twenty thousand, twenty".