2099365013 has 4 divisors (see below), whose sum is σ = 2171756940. Its totient is φ = 2026973088.

The previous prime is 2099365001. The next prime is 2099365031. The reversal of 2099365013 is 3105639902.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3105639902 = 2 ⋅1552819951.

It can be written as a sum of positive squares in 2 ways, for example, as 1573946929 + 525418084 = 39673^2 + 22922^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2099365013 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2099365063) 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, 36195920 + ... + 36195977.

It is an arithmetic number, because the mean of its divisors is an integer number (542939235).

Almost surely, 2^2099365013 is an apocalyptic number.

It is an amenable number.

2099365013 is a deficient number, since it is larger than the sum of its proper divisors (72391927).

2099365013 is an equidigital number, since it uses as much as digits as its factorization.

2099365013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72391926.

The product of its (nonzero) digits is 43740, while the sum is 38.

The square root of 2099365013 is about 45818.8281495719. The cubic root of 2099365013 is about 1280.4500803693.

The spelling of 2099365013 in words is "two billion, ninety-nine million, three hundred sixty-five thousand, thirteen".