13403343 has 4 divisors (see below), whose sum is σ = 17871128. Its totient is φ = 8935560.

The previous prime is 13403333. The next prime is 13403371. The reversal of 13403343 is 34330431.

13403343 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 an emirpimes, since its reverse is a distinct semiprime: 34330431 = 3 ⋅11443477.

It is not a de Polignac number, because 13403343 - 2⁶ = 13403279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13403323) 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, 2233888 + ... + 2233893.

It is an arithmetic number, because the mean of its divisors is an integer number (4467782).

Almost surely, 2^13403343 is an apocalyptic number.

13403343 is a deficient number, since it is larger than the sum of its proper divisors (4467785).

13403343 is an equidigital number, since it uses as much as digits as its factorization.

13403343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4467784.

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 13403343 is about 3661.0576340724. The cubic root of 13403343 is about 237.5405242023.

Adding to 13403343 its reverse (34330431), we get a palindrome (47733774).

The spelling of 13403343 in words is "thirteen million, four hundred three thousand, three hundred forty-three".