43113313 has 4 divisors (see below), whose sum is σ = 43149568. Its totient is φ = 43077060.

The previous prime is 43113307. The next prime is 43113319. The reversal of 43113313 is 31331134.

43113313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is an interprime number because it is at equal distance from previous prime (43113307) and next prime (43113319).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43113313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43113319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16281 + ... + 18742.

It is an arithmetic number, because the mean of its divisors is an integer number (10787392).

Almost surely, 2^43113313 is an apocalyptic number.

It is an amenable number.

43113313 is a deficient number, since it is larger than the sum of its proper divisors (36255).

43113313 is a wasteful number, since it uses less digits than its factorization.

43113313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36254.

The product of its digits is 324, while the sum is 19.

The square root of 43113313 is about 6566.0728750144. The cubic root of 43113313 is about 350.6472729752.

Adding to 43113313 its reverse (31331134), we get a palindrome (74444447).

The spelling of 43113313 in words is "forty-three million, one hundred thirteen thousand, three hundred thirteen".