306013013 has 4 divisors (see below), whose sum is σ = 306048300. Its totient is φ = 305977728.

The previous prime is 306013003. The next prime is 306013033. The reversal of 306013013 is 310310603.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 310310603 = 19 ⋅16332137.

It can be written as a sum of positive squares in 2 ways, for example, as 76702564 + 229310449 = 8758^2 + 15143^2 .

It is a cyclic number.

It is not a de Polignac number, because 306013013 - 2⁸ = 306012757 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 306012982 and 306013000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (306013003) 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, 5381 + ... + 25317.

It is an arithmetic number, because the mean of its divisors is an integer number (76512075).

Almost surely, 2^306013013 is an apocalyptic number.

It is an amenable number.

306013013 is a deficient number, since it is larger than the sum of its proper divisors (35287).

306013013 is a wasteful number, since it uses less digits than its factorization.

306013013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35286.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 306013013 is about 17493.2276324296. The cubic root of 306013013 is about 673.8759622584.

Adding to 306013013 its reverse (310310603), we get a palindrome (616323616).

The spelling of 306013013 in words is "three hundred six million, thirteen thousand, thirteen".