206893015313 has 4 divisors (see below), whose sum is σ = 206896095600. Its totient is φ = 206889935028.

The previous prime is 206893015309. The next prime is 206893015369. The reversal of 206893015313 is 313510398602.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 313510398602 = 2 ⋅156755199301.

It is a cyclic number.

It is not a de Polignac number, because 206893015313 - 2² = 206893015309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206893015513) 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, 1437095 + ... + 1574492.

It is an arithmetic number, because the mean of its divisors is an integer number (51724023900).

Almost surely, 2^206893015313 is an apocalyptic number.

It is an amenable number.

206893015313 is a deficient number, since it is larger than the sum of its proper divisors (3080287).

206893015313 is an equidigital number, since it uses as much as digits as its factorization.

206893015313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3080286.

The product of its (nonzero) digits is 116640, while the sum is 41.

The spelling of 206893015313 in words is "two hundred six billion, eight hundred ninety-three million, fifteen thousand, three hundred thirteen".