2101336709 has 2 divisors, whose sum is σ = 2101336710. Its totient is φ = 2101336708.

The previous prime is 2101336703. The next prime is 2101336751. The reversal of 2101336709 is 9076331012.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1652829025 + 448507684 = 40655^2 + 21178^2 .

It is a cyclic number.

It is not a de Polignac number, because 2101336709 - 2⁸ = 2101336453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2101336703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050668354 + 1050668355.

It is an arithmetic number, because the mean of its divisors is an integer number (1050668355).

Almost surely, 2^2101336709 is an apocalyptic number.

It is an amenable number.

2101336709 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101336709 is an equidigital number, since it uses as much as digits as its factorization.

2101336709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 2101336709 is about 45840.3393202974. The cubic root of 2101336709 is about 1280.8508155635.

The spelling of 2101336709 in words is "two billion, one hundred one million, three hundred thirty-six thousand, seven hundred nine".