2135530660309 has 2 divisors, whose sum is σ = 2135530660310. Its totient is φ = 2135530660308.

The previous prime is 2135530660303. The next prime is 2135530660321. The reversal of 2135530660309 is 9030660355312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1378146863025 + 757383797284 = 1173945^2 + 870278^2 .

It is a cyclic number.

It is not a de Polignac number, because 2135530660309 - 2⁹ = 2135530659797 is a prime.

It is a super-2 number, since 2×2135530660309² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2135530660303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1067765330154 + 1067765330155.

It is an arithmetic number, because the mean of its divisors is an integer number (1067765330155).

Almost surely, 2^{2135530660309} is an apocalyptic number.

It is an amenable number.

2135530660309 is a deficient number, since it is larger than the sum of its proper divisors (1).

2135530660309 is an equidigital number, since it uses as much as digits as its factorization.

2135530660309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 437400, while the sum is 43.

The spelling of 2135530660309 in words is "two trillion, one hundred thirty-five billion, five hundred thirty million, six hundred sixty thousand, three hundred nine".