13113313 has 4 divisors (see below), whose sum is σ = 13360788. Its totient is φ = 12865840.

The previous prime is 13113301. The next prime is 13113319. The reversal of 13113313 is 31331131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4422609 + 8690704 = 2103^2 + 2948^2 .

It is a cyclic number.

It is not a de Polignac number, because 13113313 - 2¹³ = 13105121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13113319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123658 + ... + 123763.

It is an arithmetic number, because the mean of its divisors is an integer number (3340197).

Almost surely, 2^13113313 is an apocalyptic number.

It is an amenable number.

13113313 is a deficient number, since it is larger than the sum of its proper divisors (247475).

13113313 is an equidigital number, since it uses as much as digits as its factorization.

13113313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247474.

The product of its digits is 81, while the sum is 16.

The square root of 13113313 is about 3621.2308680889. The cubic root of 13113313 is about 235.8146646506.

Adding to 13113313 its reverse (31331131), we get a palindrome (44444444).

It can be divided in two parts, 1311 and 3313, that added together give a square (4624 = 68²).

The spelling of 13113313 in words is "thirteen million, one hundred thirteen thousand, three hundred thirteen".