2130368309 has 2 divisors, whose sum is σ = 2130368310. Its totient is φ = 2130368308.

The previous prime is 2130368287. The next prime is 2130368437. The reversal of 2130368309 is 9038630312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2033739409 + 96628900 = 45097^2 + 9830^2 .

It is a cyclic number.

It is not a de Polignac number, because 2130368309 - 2¹⁶ = 2130302773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2130368509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065184154 + 1065184155.

It is an arithmetic number, because the mean of its divisors is an integer number (1065184155).

Almost surely, 2^2130368309 is an apocalyptic number.

It is an amenable number.

2130368309 is a deficient number, since it is larger than the sum of its proper divisors (1).

2130368309 is an equidigital number, since it uses as much as digits as its factorization.

2130368309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 2130368309 is about 46155.9130448093. The cubic root of 2130368309 is about 1286.7225072263.

The spelling of 2130368309 in words is "two billion, one hundred thirty million, three hundred sixty-eight thousand, three hundred nine".