2100301209 has 12 divisors (see below), whose sum is σ = 3047019300. Its totient is φ = 1394085024.

The previous prime is 2100301201. The next prime is 2100301213. The reversal of 2100301209 is 9021030012.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1469035584 + 631265625 = 38328^2 + 25125^2 .

It is not a de Polignac number, because 2100301209 - 2³ = 2100301201 is a prime.

It is a super-2 number, since 2×2100301209² = 8822530337053723362, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2100301191 and 2100301200.

It is not an unprimeable number, because it can be changed into a prime (2100301201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 507474 + ... + 511595.

It is an arithmetic number, because the mean of its divisors is an integer number (253918275).

Almost surely, 2^2100301209 is an apocalyptic number.

It is an amenable number.

2100301209 is a deficient number, since it is larger than the sum of its proper divisors (946718091).

2100301209 is a wasteful number, since it uses less digits than its factorization.

2100301209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1019304 (or 1019301 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 2100301209 is about 45829.0432913453. The cubic root of 2100301209 is about 1280.6403877699.

The spelling of 2100301209 in words is "two billion, one hundred million, three hundred one thousand, two hundred nine".