2103130009 has 4 divisors (see below), whose sum is σ = 2147877504. Its totient is φ = 2058382516.

The previous prime is 2103129991. The next prime is 2103130049. The reversal of 2103130009 is 9000313012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2103130009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2103130049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22373677 + ... + 22373770.

It is an arithmetic number, because the mean of its divisors is an integer number (536969376).

Almost surely, 2^2103130009 is an apocalyptic number.

It is an amenable number.

2103130009 is a deficient number, since it is larger than the sum of its proper divisors (44747495).

2103130009 is an equidigital number, since it uses as much as digits as its factorization.

2103130009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44747494.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 2103130009 is about 45859.8954316296. The cubic root of 2103130009 is about 1281.2150752360.

It can be divided in two parts, 21031 and 30009, that added together give a triangular number (51040 = T₃₁₉).

The spelling of 2103130009 in words is "two billion, one hundred three million, one hundred thirty thousand, nine".