2103730709 has 2 divisors, whose sum is σ = 2103730710. Its totient is φ = 2103730708.

The previous prime is 2103730697. The next prime is 2103730721. The reversal of 2103730709 is 9070373012.

It is a balanced prime because it is at equal distance from previous prime (2103730697) and next prime (2103730721).

It can be written as a sum of positive squares in only one way, i.e., 2096724100 + 7006609 = 45790^2 + 2647^2 .

It is a cyclic number.

It is not a de Polignac number, because 2103730709 - 2¹⁶ = 2103665173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2103730799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051865354 + 1051865355.

It is an arithmetic number, because the mean of its divisors is an integer number (1051865355).

Almost surely, 2^2103730709 is an apocalyptic number.

It is an amenable number.

2103730709 is a deficient number, since it is larger than the sum of its proper divisors (1).

2103730709 is an equidigital number, since it uses as much as digits as its factorization.

2103730709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7938, while the sum is 32.

The square root of 2103730709 is about 45866.4442593929. Note that the first 3 decimals coincide. The cubic root of 2103730709 is about 1281.3370446546.

The spelling of 2103730709 in words is "two billion, one hundred three million, seven hundred thirty thousand, seven hundred nine".