100130020 has 12 divisors (see below), whose sum is σ = 210273084. Its totient is φ = 40052000.

The previous prime is 100130003. The next prime is 100130039. The reversal of 100130020 is 20031001.

It can be written as a sum of positive squares in 2 ways, for example, as 45724644 + 54405376 = 6762^2 + 7376^2 .

It is a junction number, because it is equal to n+sod(n) for n = 100129985 and 100130012.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2503231 + ... + 2503270.

It is an arithmetic number, because the mean of its divisors is an integer number (17522757).

Almost surely, 2^100130020 is an apocalyptic number.

100130020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100130020 is an abundant number, since it is smaller than the sum of its proper divisors (110143064).

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

100130020 is a wasteful number, since it uses less digits than its factorization.

100130020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5006510 (or 5006508 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 7.

The square root of 100130020 is about 10006.4988882226. The cubic root of 100130020 is about 464.3599626987.

Adding to 100130020 its reverse (20031001), we get a palindrome (120161021).

The spelling of 100130020 in words is "one hundred million, one hundred thirty thousand, twenty".